EM-1 Effective Micro-Organisms Soil Additive

£21.59 inc VATWas: £29.99 inc VAT


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Price ex VAT£17.99£17.45£16.73

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EM • 1® is the starting material for all EM products.

EM • 1® is in liquid form and contains various groups of microorganisms, including lactic acid bacteria, yeasts and photosynthetic bacteria. Thanks to the coexistence of the microorganisms in EM • 1® and the metabolites it contains, already existing microorganisms are activated in different environments and conditions where it is added. This is possible in many different areas such as agriculture, animal husbandry, environmental and water purification, and health care.

The selection of microbes includes lactic acid bacteria, yeasts, and photosynthetic bacteria. Many of these have traditionally been used in our diet, for example in baking and brewing. 1 teaspoon EM • 1® contains more than 1 trillion microbes. These microorganisms are in a dormant state in EM • 1® and are activated by the addition of water and cane sugar molasses.

EM • 1® is completely free of GMO-altered microbes and contains only carefully selected soil microbes. The preparation is produced in a laboratory environment with high purification requirements.


How it works

EM • 1® is a mixture of beneficial microorganisms. The preparation consists of both aerobic and anaerobic species which initiate an anaerobic fermentation process that utilizes and produces vital nutrients that make soil and soil more fertile. Experiments have shown that EM culture enriches ecosystems with better plant development and harvest outcomes both quantitatively and qualitatively.

EM-1 is used together with A+ Sugar Cane Molasses to create EM-A (activated EM) in an activator.



Mix 50ml EM1 + 50ml A+ (dissolve in 950 ml lukewarm water). Leave this in an activator for 1 week. Some yeast flakes may form, these belong to EM. EM-A should smell fresh and sour. The pH should be around 3.8.


Customer Reviews4.95 4.9/5 Based on 17 reviewsShow all reviews


Good product, worth buyingReviewed by Gardeniachan2020 on 26 Mar 2024

Effective as it describes. I am using it in my chicken coop, love it. Will purchase again when it finished. Good delivery! 5 stars!


Bran flakesReviewed by Andrewfmellon on 29 Oct 2023

Used successfully for inoculating bran and creating Bokashi bran.


Thank you for the safe arrival and efficient serviceReviewed by Zoewillis on 23 Aug 2023

I purchased a bottle of EM-1 EFFECTIVE MICRO-ORGANISMS SOIL ADDITIVE with a bottle of molasses in order to make my own Bokashi Bran. [I got the recipe from https://thatbackyard.com/how-to-make-diy-bokashi-bran-at-home/] After leaving the Bran mixture to mature for 2 weeks, I then dried it out over 36 hours so it can be stored. I have been using it for the past 2 weeks in my Bokashi Bin and it is breaking down the food waste, and producing the sweet smelling 'juice' in the same way that the pre-prepared Bran had. [But it works out cheaper to make my own!]


Very goodReviewed by Iris4all on 03 May 2023

Activating it now for consumption


Very goodReviewed by Iris4all on 03 May 2023

Activating it now for consumption

UK Mainland Delivery Prices

WeightPrice exVATServiceTracked
0 - 2kg£3.32Economy 5-7 Working DaysYes
2 - 5kg£6.20Economy 5-7 Working DaysYes
0 - 10kg£7.751 - 2 DayYes
10kg - 30kg£7.75 + 26p per kg over 10kg1 - 2 DayYes
31kg and above£25.00 + 66p per kg over 31kg1 - 2 DayYes



UK Highlands, Islands and Northern Ireland
Highlands and Islands delivery starts at £3.32 (exVAT) and will be calculated automatically at the checkout.


Channel Islands
We can deliver to the Channel Islands, the price will be calculated at the checkout based on the weight of your order.


EU Delivery Prices

CountryWeight Price*
France, Germany, Belgium, Luxembourg, Netherlands0 - 30kg£20.99
France, Germany, Belgium, Luxembourg, Netherlands30 - 60kg£43.26
Austria, Denmark, Switzerland0 - 30kg£23.50
Austria, Denmark, Switzerland30 - 60kg£49.74
Czech Republic, Italy, Slovakia, Spain0 - 30kg£26.50
Czech Republic, Italy, Slovakia, Spain30 - 60kg£75.70
Estonia, Finland, Hungary, Poland, Portugal, Sweden0 - 30kg£29.50
Estonia, Finland, Hungary, Poland, Portugal, Sweden30 - 60kg£190.34
Greece, Lithuania, Latvia, Norway, Romania0 - 30kg£38.91
Greece, Lithuania, Latvia, Norway, Romania30 - 60kg£190.34



Rest of World Prices

We can ship to many countries including:

  • Australia
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  • USA

Postage rates for these countries will be automatically calculated based on the weight of your order.


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We use a delivery service that aims to get your orders to you within 1 - 2 working days. Please allow 1-5 working days for processing on items that are ordered in.


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The delivery charge is non-refundable except in cases where the goods are faulty or in cases where the order was cancelled under the UK Distance Selling Regulations.

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