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3-Ingredient Compost Tea Recipe

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Learn how to make the best 3-ingredient compost tea recipe in this easy backyard gardening tutorial. 

Man and woman carrying buckets in their garden
© Deposit Photos / avk78

Compost tea is becoming quite popular with gardeners as they look for natural, yet effective, ways to make their gardens grow.

Making your own compost tea can be quite simple. You just need a few ingredients – water, molasses and worm castings.

Learn how to make your own natural compost tea recipe in this easy gardening tutorial so your garden can reap the benefits this mixture has to offer. 

Man and woman carrying big white buckets through their garden

How to Make Compost Tea

Learn how to make an easy compost tea recipe in this easy gardening tutorial.
4.67 from 3 votes
Prep Time: 10 minutes
Active Time: 30 minutes
Total Time: 40 minutes



  • 5-gallon bucket
  • Air bubbler/aquarium bubbler
  • Nylons (new or old are fine)


How to Make Compost Tea

  • Before you begin, make sure all of your supplies are cleaned well and disinfected. Use a disinfecting soap to thoroughly wash and clean all buckets, tubing and other supplies you will be using for this recipe. You don’t want bacteria and germs to make their way into your tea!
  • Place the bubblers at the bottom of the bucket. Make sure they are securely in place and won’t move once you add the water.
  • Slowly add the water to the bucket. You can use rain water if you wish to be more eco-conscious.
  • Add the worm castings to a nylon and tie a knot at the end so they won’t come out.
  • Suspend the castings into the bucket.
  • Add the unsulfured molasses to the water and turn on the bubblers.
  • Allow the mixture to bubble for 24 hours. Do NOT let the bubblers run for anymore than 36 hours. You don’t want to risk the mixture by overdoing it.
  • One your mixture has bubbled for 24 hours, run it through an additional stocking or strainer to remove any large pieces or chunks that might have made their way into the mixture.

How to Use Compost Tea

  • Most people like to use a sprayer to distribute the compost tea into their garden. Since you are spraying the compost tea, it is important to not skip the straining step. Leaving any small bits or pieces in the mixture will clog your sprayer, which you don’t want!
  • You can apply your compost tea after the first few weeks of the gardening season, and make and apply again about a month later.

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