Archive for the 'Steplight' Category



Have you calculated your ecological footprint?

When facing environmental issues, it can be hard to know what you can do to help as an individual. Understanding your impact on the environment is important for knowing what actions you can take to reduce the strain on our environment. A simple way of doing this is by calculating your ecological footprint.

An ecological footprint is an estimate of how much productive land is required to provide all the resources consumed (and absorb all the waste created) by an individual or group.

Your footprint is measured in units of ‘global hectares’. A global hectare is the common unit used that includes the average productivity of the world’s productive land and ocean in a given year. Your ecological footprint is usually expressed in terms of how many planets we would be needed if everyone on earth lived the way you did. Knowing your ecological footprint will help you answer the simple question of ‘how many earth’s do I need to sustain my lifestyle?’ If it is more than one, then you are using more than the earth can afford.

Take the ecological footprint quiz below to discover which areas of your life contribute most to resource consumption and learn about what you can do to reduce your ecological footprint.

Steplight has a workshop on ‘Understanding your Eco Footprint.’ Click here to find out more.

Global Footprint Network – Footprint Calculator:

Global Footprint Network Calculator

Australian Conservation Foundation – Consumption Atlas:

ACF Consumption Atlas Australia

- Alegria Alano

Sustainable Spring Clean

For many people, the beginning of spring means a big ‘spring clean’. While overhauling the clutter that may have accumulated over the cooler months, keep in mind these sustainable cleaning tips.

Think before you throw

In 2006 – 2007, Australian’s generated approximately 43.8 million tonnes of waste and almost half of this was sent to landfill.

Before you send your things to the tip, consider one of the many other more sustainable means of disposal. One of these is ‘upcycling’ which is turning your old products into something that is new and useful. There are countless blogs available that talk about and share upcycling ideas such as turning old clothes into a patchwork quilt, using an old bed-frame for your no-dig garden or using old camera lenses, tins and even floppy disks to make creative pots and pencil holders.

If you don’t have the time to upcycle, you could give your old clothes, furniture and bric-a-brac to a friend or second-hand shops or even try selling them yourself by having a garage sale or a market stand.

Selling or swapping will work well for things that are still in good condition but you are still likely to be left with some waste that will have to be thrown out. Make sure to dispose of these things thoughtfully. Check with your local council to see what materials can be recycled and make sure you recycle your electronic waste.

Clean with fewer chemicals

Many chemicals commonly found in household cleaners such as detergents, soaps waxes and sprays are toxic to humans and the environment. Cleaning with fewer chemicals doesn’t mean lowering your standard of cleanliness. Organic and environmentally friendly cleaning products are now available from some supermarkets. Just be sure to do a little bit of research to find out what products will work for you without putting your health or the environment at risk.

See our related post on reusing your ‘greywater’.

Furnish for the future

If you’re thinking about re-decorating your space consider more sustainable options. Have a look for second-hand goods on the internet, at garage sales, markets and second-hand or antique shops. If you can’t find a second-hand option, keep in mind the product’s footprint. If possible, buy well-made products that won’t need to be constantly replaced, that are made locally or from sustainable materials.

- Alegria Alano

You know the Carbon Tax, but do you know Greenhouse Gas Emissions?

A topic on everyone’s mind of late is the carbon tax. With seemingly endless media coverage and ongoing debate about the tax, it is easy to forget about why it’s all happening. We think it’s a perfect time to brush up on the less contentious facts of greenhouse gas emissions.

The most common greenhouse gases

Greenhouse gases (GHGs) are gases in the atmosphere that absorb heat radiated by the sun or reflected off the earth. There are many greenhouse gases in the atmosphere. The most abundant (in order) are water vapour, carbon dioxide, methane and nitrous oxide.

The source of greenhouse emissions

There are several natural and anthropogenic sources of greenhouse gases. Water vapour enters the atmosphere through evaporation. Carbon dioxide is released into the atmosphere through processes involved in the carbon cycle (such as the decay of dead vegetation or volcanic activity). Methane gas is released by animals and nitrous oxide is produced by microbes in soils.

Humans can contribute to the release of these gases by indirectly accelerating the natural release of GHGs. For example, increased agriculture (especially cattle) can lead to more methane production. Deforestation can also effect the concentration of GHGs in the atmosphere as trees are a carbon dioxide “sink”, that is, they remove carbon dioxide from the atmosphere. A decrease in carbon sinks means that more carbon is left in the atmosphere.

GHGs are also directly released into the atmosphere by human activity, particularly the burning of fossil fuels. Fossil fuels contain a high percentages of carbon and when burned, are released into the atmosphere as carbon dioxide and other gases. Humans burn fossil fuels in the form of coal, petroleum and natural gas.

Greenhouse gases and ‘global warming’

Greenhouse gases warm the planet (the greenhouse effect). This in itself is needed, as the warmth of our atmosphere is what has allowed life on earth to survive. However, many believe the increase in greenhouse gas emissions (particularly after industrialisation) is leading to a warming of the planet. Many also believe that this will have dire consequences for the earth’s ecosystems, climate and our way of life.

All that re-capped in a 3 minute video

Here’s a great three-minute video from the University of New South Wales on the topic:

Australia’s key role in measuring global emissions

Atmospheric composition is measured at three key ‘baseline’ stations around the world. One of these is located in Cape Grim on Tasmania’s west coast. The baseline stations measure air samples that represent a large area that is unaffected by pollution from nearby cities or industry. In Tasmania, the baseline air comes from the Southern Ocean. Air samples are taken then tested for pollutants and greenhouse gases with each greenhouse gas requiring its own specific test.

Here is the data from the last 30 odd years of measuring carbon dioxide emissions at Cape Grim:

Cape Grim CO2 carbon dioxide concentration chart graph

Atmospheric Carbon Dioxide Concentration (ppm, y axis) by Year (x axis) - measured at Cape Grim, Tasmania

- Alegria Alano

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Steplight Power Meter reviewed by CHOICE

Steplight Power MeterThe “people’s watchdog” CHOICE magazine recently reviewed 11 plug-in Power Consumption Meters.

The review included testing the accuracy of a high power reading (over 1,000 watts) and a very low reading (about 1 watt). We’re pleased to report that our power meter (pictured on the left) scored well (the highest of the low cost power meters).

You can purchase the full article here.

Power meters are a handy educational tool for consumers. By monitoring your energy consumption you can use these devices to your advantage. You’ll discover the power hungry appliances in your home…

CHOICE put 11 power meters to the test ranging in price from $15 to $395. Each power meter was tested to see how accurately it records high power usage and very low power usage and was compared to CHOICE’S calibrated power meter.

Power meters are generally easy to use – you simply plug your appliance into the meter (which needs to be plugged into the power point) and clear readings are given to you on a LCD screen. You don’t need to spend top dollar, most of the cheaper models will do the job.

[...]

Models tested

  • Arlec Energy cost meter PC222
  • Belkin Conserve insight energy use monitor F7C005au
  • CCI Power Mate PM15A
  • CCI Power Mate Lite PML10A
  • Clipsal Ezaudit power usage meter 10A
  • DOSS 3 Way Wireless Power Meter WPM03
  • DOSS Mains Power Meter MPM01
  • Efergy Esocket Energy Monitoring Socket KAS01-01
  • Powertech Plus Wireless Energy Monitor MS6116
  • Powertech Plus Multifunction Energy Meter MS6115
  • Steplight Plug-in Power Meter

- CHOICE 8 June 2011. Full article can be viewed here.

Click here to see Steplight’s full range of energy meters and monitors.

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How to reduce winter heating costs (a renter’s approach)

I have written before about some of the things we can do around the home to reduce the impact of our waste by turning it into a resource. My favourites are composting, worm farming and no-dig gardening. My other particular bug is to recycle as much as possible to ensure the valuable resources contained in our unwanted products are recovered and remade into new products, using services like the fridge buy back scheme and e-waste recycling.

My biggest ‘energy problem’ is winter heating

This time I thought that it would be useful to talk about some of the small changes we can make around the house to use energy more efficiently which can pay back more than the cost in time and money. So, I am going to share with you the small changes I have made personally since 2009.

I live in an area where winters are quite cold and my winter bills are my biggest energy issue, as well as electricity being the only option available (no gas available). The place to start was with all the small changes I could do to make the house more comfortable.

First I checked the orientation of the house, where the house was shaded by vegetation and buildings, and which walls and windows were exposed to the sun. I have:

  • Dense bushes and trees shading the north-east side of the house,
  • Large windows and glass doors exposed to afternoon sun on the north-west side,
  • The living room window faces south-east and gets radiant heat from outside paving,
  • The bedroom windows face south-east and south-west.

I looked at the window coverings, both internal and external to see what needed improving. I checked all the windows, doors, wall and ceiling vents and wall mounted AC for gaps and problem drafts.

Ausgrid heating cost comparison guide

Steplight recently completed some work for Energy Australia's Customer Hardship Prevention Program. Click the link above to view their heating cost comparison guide. Copyright Ausgrid 2011.

Minimising air leakage and draughts

The changes I made include:

  • Covered all wall and ceiling vents with clear contact (the sticky plastic roll you cover books with). Cut to the size and shape of the vents it’s invisible.
  • Used draft stopper snakes on inside of all external doors.
  • Sealed gaps around the wall mounted AC.

Improving insulation and the type of heaters used

By taking advantage of the warming sun coming in during the day, opening the curtains and blinds to the north-west and closing them to the south and east of the house I am able to reduce the energy needed to heat my home in winter. Once the sun has gone down I close all the curtains and blinds to retain this radiant heat. Here are some other changes that I made:

  • Replacing thin curtains with heavy close fitting ones that covered the window frame and fell to the floor.
  • Fitted a blockout blind to the kitchen window.
  • Took advantage of passive solar options where possible.
  • Used a small radiant heater in preference to a larger space heater when occupied in one room for long periods.
  • Used space heating only when the small radiant heater was insufficient, then used the lowest setting possible to warm the room.

Other behaviour change to reduce heating requirements

The changes I made include:

  • Made sure all doors in other rooms were closed to reduce the size of the space requiring heating. In other words, I improved the zoning.
  • Made sure I dressed warmly for the forecast wintery day/night.

I made one further improvement before winter 2010 by replacing oil column heater with a convection heater. The convection heater has the same energy input rating though heats the space more efficiently and requires less usage. The result being that I feel warmer with less energy consumption and less cost.

Success: winter bill down by $100!

Even with rising energy costs I was able to reduce my winter bill by $100, comparing 2008 with 2009. These changes I made cost me just under $100 in total as some of the materials I already had around the house. The benefits will be paying me back every year.

The house has open plan living spaces which make it hard to properly zone the areas of the house I use most and want to heat. I’ve decided that my next step is to curtain off the archways and across the open (three way) bathroom doorway to affect a more efficient zoning of my living areas. This will be an easier and cheaper option than it would be to reconstruct new doorways.

- Marta Lett

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Course in Sustainability: Enrollments Open

Australia Map Sustainability VictoriaIs it time that you or your team completed a nationally recognised Course in Sustainability Assessment?

The Course in Home Sustainability Assessment (course code 21854VIC) enables graduates to provide advice on reducing environmental impact. The training covers the key topic areas of: sustainability assessments, energy consumption, water use, waste and recycling, garden and environs, and lifestyle choices.

It’s a nominal 80 hour course which Steplight has delivered to over 50 participants in eight separate groups over the past two years.

We first delivered the course to a small group at Newleaf Communities. Then came the igreen train-the-trainer in June last year. Since then, Marta Lett and Ian Moxon have assisted in the delivery of several training intakes for the Y Green Western Sydney Project.

We thinks it’s a great course for those interested in furthering their sustainability knowledge. Although the course is focused around ‘home assessments’ the knowledge gained can be applied far beyond the home.

Steplight is now offering this course for either on-line (Australia wide) or in-person (Sydney) delivery in July/August 2011.

Click here to find out more and register your interest.

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How to read your electricity meter

Knowing how to read your electricity meter is an important part of understanding your energy use. By reading your own electricity meter, you can check that you are being billed correctly. You can also note down your consumption more frequently instead of waiting till the end of each quarter for your bill.

Even if you have a wireless energy monitor installed, being able to read your meter is a good skill to have. If you’re after the consumption of individual appliances you are best off using a plug-in power meter.

The new digital or ‘smart’ meters are quite intuitive to read (they have a simple digital read out). Most households in Australia still have the older style ‘mechanical’ meters. These are a little more difficult to read – they require you to read the clock faces to get a number for total kilowatt-hours (kWh) consumed.

How to read your electricity meter

Electricity Meter example 1

1. Stand at eye-level with the dials on your meter.

2. Read each dial one at a time from right to left and note the direction of the numbers. Dial A in the example above is read anti-clockwise.

3. To read the dial, we note the lower number, not the number that the dial is closest to.

For example, E is between 0 and 1 so we would read it as 0. An exception to this rule is if the dial is between 0 and 9 in which case it is read as 9 (dial C).

4. If the dial is right on top of a number, you cannot assume that it is that number. For example, in B it might not be right on 5, it might actually be a little to the right, between the numbers 4 and 5 which would be read as 4. To be sure, check the reading of the next dial.

If the dial on the right reads 8 or 9, the left dial is read as the lower number. If the right dial reads 0 or 1, the left dial is read as the number that the dial appears to be on.

For example, dial C, is read as 9. This means that dial B is between the numbers 4 and 5 so it would be read as 4 (the lower number).

The meter Example 1 above reads 04980.

Now, try reading the meters below

Note that the last dial in the example below (black with a red arm) has no numbers. This is the decimal point, showing increments of 1/10th of a kWh. To note its direction, follow the arrow (this one is going from 0-9 clockwise).

Electricity meter example 2

The reading for this example 2 is 04434.1

All the dials are clearly between numbers except for the last which appears to be on 4. To read this, look at the decimal dial. Because the decimal point (in this case rotating clockwise) reads 1, the previous dial is between 4 and 5, so it reads 4.

Electricity meter example 3

This is a hard one. The reading for example 3 above is 63599.8

The last dial appears to be right on 0, so we look at the decimal dial (in this case rotating anti-clockwise) which reads 8. This means that the last dial reads 9.

Because the last dial reads as 9, the dial to the left of it (which also appears right on 0) is actually read as 9 as well, which makes the dial to the left of that 5.

How to make use of the numbers

A meter reading all by itself is not of much use. You need two readings to get total kWh over a period of time by subtracting one reading from the other. If you want to analyse specific usage (such as using the reverse cycle air conditioner or not) take a reading once per day and compare days when it used to those when it is not used.

Otherwise, even taking a reading once a week or once a month can be quite informative.

Click here to see our full range of energy meters and monitors.

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Plug-in Power Meter FAQ

Steplight Plug-in Power MeterThe features of the Power Meter are outlined here. On this page we have listed some of the common questions about the power meter.

How accurate are the readings?

We have tested the Steplight / Watts Clever Power Meter against high-end (expensive) power meters such as the PowerMate (~$300). The readings from our power meter of actual power consumption (Watts) are comparable to those produced by the PowerMate.

The unit also featured in a recent power meter review by CHOICE.

What is the lowest power consumption it can measure?

The lowest readings we have seen are for small power supplies (about 1 watt). For example, the power supply for our wireless energy monitor reads 0.4 watts.

How does the clock / timer work?

The clock will initially show Minutes : Seconds, and then Hours : Minutes after one minute has passed.

After 1 day the 24 hour timer resets to 0 and ’1′ is added to the Day counter. To see the total appliance run-time go to the ‘kWh’ screen where total Days are displayed in addition to the 24 hour timer. For example, after 55 hours of an appliance using more than 0 watts it will read 2 Day and 07:00.

Why does the timer stop?

The timer will stop accumulating when the plugged-in appliance drops to 0 watts.

You can use this feature to measure actual run-time of appliances. For example, you can plug your fridge in for 24 hours and observe the clock to see how much of that time the compressor was actually running. This is great for troubleshooting ‘problem’ loads around your home.

The Timer, Cost and kWh will all continue to accumulate until you hit the master reset button in the middle of the Power Meter.

I’m not getting a response from my meter, is it faulty?

Sometimes, when using the power meter for the first time, the internal rechargeable battery needs to charge up. Simply plug your power meter into a power point that is switched on without an appliance attached. After a few hours of charging, plug an appliance into the power meter and press reset. It should be working as normal. If not, please contact us.

Does the Power Meter measure Real or Apparent Power?

Our power meter measures ‘Real Power’ – this is what you are billed for. Power is measured instantaneously in Watts (W) and over time in kilowatt-hours (kWh). Other cheap power meters do not perform measurements accurately and do not always display real power.

The power meter will show you (among other things): volts (V), amps (A), power factor and real power (W).

This is how you calculate real power in watts (don’t worry, the meter does this for you!)

  • Volts x Amps x Power Factor (as a fraction of 1) = Watts

For example:

  • 250 volts x 0.7 amps x 0.60 power factor = 105 Watts (Real Power)
  • 250 volts x 0.7 amps = 175 VA (Apparent Power)

You can see from the above example why getting this calculation right is important. Other power meters sometimes fail to do this correctly.

Can you provide some more information about setting the cost?

The cost isn’t pre-set to cents or dollars, it is just a number (’00.00′), so you can set it however you like.

For example, if your electricity rate is 20c per kWh we recommend setting the price at ’00.20′ (as in $00.20), rather than ’20.00′ (as in 20.00 cents).

Click here to see our full range of energy meters and monitors.

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Current Cost EnviR Energy Monitor FAQ

Wireless Energy MonitorDo you have questions about the Current Cost EnviR Wireless Energy Monitor? Read our FAQ questions and answers below.

Will it work with 3 phase power?

Yes. To measure three-phase power you need a total of three sensor clamps. All you need to do is buy two extra clamps with your Energy Monitor (see purchase options at the bottom of this page).

Will it show me how much electricity I’ve used over the past month?

Yes. The display screen shows your usage for the past day, 7 days and 30 days.

Can I download the data?

Yes. You will need to buy a USB Data Cable from the home energy monitor page. The unit stores 90 days of kWh per day and 7 years of kWh per month. If you want to record usage at smaller intervals you can, but you will need to leave the monitor plugged in to your computer or laptop.

To download the software for the monitor go to this Current Cost website and:

  • Download the driver OPTION A, and
  • Choose a software program (we have used Techtoniq in the past)

Can I use this at my business site?

Yes. Although this monitor was originally designed for households, it also works very well at small business sites. Each transmitter can track up to 100 amps of power consumption. In practical terms, if your electricity bill is below around $25,000 per year then you can use the monitor to track your usage.

How far will the transmitter signal travel?

We have tested the signal to 50 metres.

My meter box is over 50 metres away, can I still use the energy monitor?

Yes. You should be able to clamp over the incoming supply cable before it gets split off into individual circuits at your household switchboard. We recommend using an electrician to do this as it is often ‘behind the board’. If you have a circuit breaker at your switchboard, you may be able to do this yourself (clamp around the cable which goes into the breaker – if this is on the outside of the board).

Can I use the energy monitor to look at individual appliance usage?

Yes. You do this by observing the difference in consumption when the appliance is turned on and off. The screen updates every 6 seconds. Some free software programs will allow you to download data at this very frequent rate.

You can also use the Energy Monitor to track individual circuits at your switch board (eg. air conditioning or hot water, if they are on their own circuits). However, the primary purpose of the Energy Monitor is to look at the energy consumption across your entire home.

To monitor individual appliance consumption in detail we recommend using the Plug-in Power Meter.

Is the energy monitor compatible with Google Powermeter?

It was, but Google PowerMeter is now closed.

Can I enter three time-of-use tariffs from my smart meter?

No. The monitor can only take two tariffs. For an alternative, the new Watts Clever energy monitor can accept up to three tariffs.

Bear in mind that no energy monitor on the market can account for the true complexity of a three tariff system. This is because these tariffs change depending on what time it is, the day of the week and whether it is a public holiday (i.e. the monitor would need a complete calendar in it).

If you want detailed cost information, your best option is to download software and analyse it in Excel (or similar). Some software such as Techtoniq allows you to export data to Excel.

However, most people find that entering an average tariff rate is sufficient, as you will probably find the power reading more informative than the precise cost.

Can I monitor my solar power production using this monitor?

Yes. You can use the monitor package to track your solar power production. You will most likely require the assistance of an electrician to make sure you clamp the sensor over the correct cable.

Alternatively, you can monitor both your power consumption and solar production. We recommend using the new Watts Clever solar energy monitor for this purpose.

How do I add an additional transmitter to the display unit?

On the display unit click the ‘up’ or ‘down’ arrows. You will notice that apart from the main screen there are nine other screens labelled “Appliance 1″ to “Appliance 9″. Data from additional transmitter units can be received on any of these screens. Simply place the display unit on one of these screens, then follow the instructions for “pairing” a transmitter and display in the instruction manual.

How do I erase all data from the unit?

Switch off the power to your display, then hold down the ‘up’ and ‘down’ arrows and at the same time switch the power back on, then release the ‘up’ and ‘down’ arrows.

The display will then go through its ‘reset’ cycle.

What size are the sensor clamps?

The internal diameter of the sensor clamp is 12mm. If you need a larger clamp, use the Watts Clever model (clamp size = 25mm).

I’m confused by all the terminology: how does it work?

Please review the graphic below the understand the three components of the monitoring system.

How it works - Current Cost EnviR

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A guide to sustainable product labels in Australia

A trip to the supermarket often costs much more than what you pay at the checkout. Hidden costs are found in products made using unsustainable ingredients and practices that leave it to our environment, producers and even our bodies to pay the price.

As consumers we can make the decision to buy products that are good for us, good for others and good for the environment. But finding these products can easily turn into a daunting task. Anyone who has tried to make a conscious choice has probably faced the myriad of labels which aim to inform but often leave shoppers confused.

We take a quick look at some useful ‘eco labels’ that can help you make the right choice. Try switching a few products at a time so you don’t get too overwhelmed. Just remember, it’s near impossible to get a perfect product and be a perfect shopper, but getting to know the meaning behind a few labels is a good place to start.

Product of Australia

Product of Australia label logoAll of the significant ingredients in this product come from Australia and all or almost all of the processing and manufacturing occurs in Australia.

.

Australian Made

Australian Made label logoAt least 50% of the cost of production has been incurred in Australia and the product is substantially transformed in Australia. If a business is Australian owned, they can have ‘Australian Made & Owned’ on the logo. If the business is Australian owned their products are manufactured overseas then they cannot use this logo.

Forest Stewardship Council

Forest Stewardship Council FSC label logoThis label ensures that the forest products used in the item are from responsibly harvested and verified sources. In other words, the forests that they come from have met the FSCs standards of management.


Carbon Reduction Label

Carbon Trust CO2 label logoA product with the carbon reduction label is committed to reducing its carbon emissions. This means that the product’s carbon footprint (for its entire life cycle) is calculated and evaluated every two years. If the carbon footprint of the product hasn’t been reduced in two years, the label is removed. The label also tells you the volume of greenhouse emissions emitted and what greenhouse gasses are associated with the product.


Fair Trade

Fairtrade label logoFor a product to display the Fairtrade label it must meet the international Fairtrade standards which are set by the international certification body, Fairtrade International (FLO). These standards are set after research and consultation is undertaken with key participants in the Fairtrade scheme such as producers, traders, NGOs, academic institutions and labeling organisations.

Marine Stewardship Council (MSC)

Marine Stewardship Council label logoIf a product displays the MSC ecolabel it means that the seafood product comes from a sustainable fishery that has met the MSC environmental standard for sustainable fishing. The three basic principles for the MSC standard are:

1. Fishing activity must be at a level that will maintain a healthy fish stock indefinitely.

2. Fishing activity should be managed to maintain the ecosystem on which the fishery depends.

3. The fishery must meet all local, national and international laws and must have a management plan to respond to changing circumstances and maintain sustainability.

Rainforest Alliance Certified

Rainforest Alliance Certified label logoItems that have a Rainforest Alliance Certified mark have been grown and harvested using environmentally and socially responsible practices. This means that and agricultural or forestry products in an item are sourced from farms and forests that meet the Sustainable Agriculture Network (SAN) Standard and the FSC Forest Management Standards.

Australian Certified Organic

Australian Certified Organic label logoItems which display the Australian Certified Organic logo have been made using methods that comply with national or international standards for organic farming and processing.

Soil Association Organic Standard

Soil Association Organic Standard label logoThe Soil Association (UK) symbol insures that the product has met the minimum UK government requirements for organic labelling. The standards cover every stage of production and are continually developed to raise the quality of organic food.

- Alegria Alano

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