EM-1 Effective Micro-Organisms Soil Additive

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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 Reviews 5.0 5 5.0/5 Based on 10 reviews Show all reviews


powerful stuff Reviewed by S.farida.s on 23 Jun 2022

wonderful active product


Brilliant. Reviewed by Kathyhill941 on 07 Jun 2022

Great prompt service.


great service Reviewed by Randomsretreat on 03 May 2022

thanks for fast delivery and great service


Great product Reviewed by Smithstephanie12 on 18 Apr 2022

Arrived promptly found the site informative with a good selection of products and really easy to navigate. Excellent service I will definitely order from this company again.


Indoor use Reviewed by Surendra.messages on 08 Apr 2021

We use this product primarily in our home. Adding to water for indoor plants seems to keep them healthier. We also spray a little into rooms to improve the bacterial quality and use it to wipe down surfaces as well. For all of these purposes, we dilute the concentrate 1:20.

UK Mainland Delivery Prices

Weight Price exVAT Service Tracked
0 - 2kg £3.00 Economy 5-7 Working Days Yes
2 - 5kg £6.20 Economy 5-7 Working Days Yes
0 - 10kg £7.75 1 - 2 Day Yes
10kg - 30kg £7.75 + 26p per kg over 10kg 1 - 2 Day Yes
31kg and above £25.00 + 66p per kg over 31kg 1 - 2 Day Yes



UK Highlands, Islands and Northern Ireland
Highlands and Islands delivery starts at £3.42 (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

Country Weight  Price*
France, Germany, Belgium, Luxembourg, Netherlands 0 - 30kg £10.99
France, Germany, Belgium, Luxembourg, Netherlands 30 - 60kg £43.26
Austria, Denmark, Switzerland 0 - 30kg £13.50
Austria, Denmark, Switzerland 30 - 60kg £49.74
Czech Republic, Italy, Slovakia, Spain 0 - 30kg £16.50
Czech Republic, Italy, Slovakia, Spain 30 - 60kg £75.70
Estonia, Finland, Hungary, Poland, Portugal, Sweden 0 - 30kg £19.50
Estonia, Finland, Hungary, Poland, Portugal, Sweden 30 - 60kg £190.34
Greece, Lithuania, Latvia, Norway, Romania 0 - 30kg £28.91
Greece, Lithuania, Latvia, Norway, Romania 30 - 60kg £190.34



Rest of World Prices

We can ship to many countries including:

  • Australia
  • Canada
  • Turkey
  • USA

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


When will my order be delivered?
We are committed to getting your order to you as soon as possible.

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.


Can I track my delivery?
Yes. If you provide us with a mobile number or email when you checkout we will send you information from our courier which allows you to track the progress of your parcel as well as other additional options as stated below.


In-flight delivery options
Our courier will send you a 1-hour delivery window on the day of delivery and you have the option to change this if required at no extra charge or you can also let the courier know that you want the parcel left in a safe place.


Special delivery instructions
If you have any special instructions for delivery, such as directions or where to take your parcel, please include them in the 'special instructions' section at the checkout. 


Any other questions, please click here to view our full delivery FAQ.


Customers must return unwanted items to us within 30 days of receipt. This does not affect your statutory rights.

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.

Please Note: Due to Health & Safety At Work Regulations, we require any used faulty goods to be returned into us in a clean condition before we accept them and issue a refund.

Please click here to view our full returns policy.