How to Make and Use Compost Tea: A Simple Guide

In my opinion the best thing you can do for your soil is add compost tea. This nutrient-rich liquid is made by infusing water with organic compost and has an array of benefits for soil health, in turn aiding plants to grow strong and healthy.

Over the years, I've learned how to create compost tea efficiently and without mains power. The process involves a few simple steps, and once you've mastered it, you can easily feed your plants with this all-natural fertiliser, seeing great results in your garden or allotment.

In this article, I'll discuss how to prepare compost tea and how to apply it, ensuring that your plants receive optimal nourishment.

Benefits of Compost Tea

In my experience, compost tea offers numerous advantages for both plants and soil health.

Firstly, compost tea enhances plant growth. It provides plants with macro and micronutrients, contributing to their overall health and vitality.

Applying compost tea to plant leaves allows microbes to compete for space with pathogens. In some cases, this offers protection against potential diseases and infections. This not only helps maintain the health of my plants but also improves their resilience.

Compost tea also proves beneficial for the overall health of the soil. It introduces beneficial bacteria and fungi, which promote a biodiverse environment. This, in turn, supports healthy plant growth as the microorganisms break down organic matter within the soil, making nutrients more accessible to plant roots.

Compost tea can also improve soil structure. As microbial activity increases, it helps to aggregate soil particles, leading to better soil aeration and water retention. This improved soil structure enables plant roots to penetrate more deeply, allowing them to access additional nutrients and water resources.

Applying compost tea can also help remediate contaminated soils. The increased microbial activity helps break down pollutants and toxins in the soil, making it more conducive to plant growth and development. This is particularly useful for areas suffering from soil degradation or chemical contamination.

What You Need To Make Compost Tea

Luckily, compost tea is straightforward to make and requires only a few materials and tools.

Compost

To make compost tea, the first thing you need is well-aged compost. This is the main ingredient for our recipe, as it contains beneficial microorganisms that will help our plants thrive. You can use compost made from kitchen scraps or garden waste or purchase it from a local garden centre.

It's essential that the compost is mature, as this ensures that it is rich in nutrients and microbes.

Brewing Equipment

In addition to the ingredients mentioned above, you will also need certain brewing equipment to make compost tea. Here are some essential items:

• A Bucket filled with water - do not use tap water if possible. If you must, then let it sit for 24 hours before use.
• A mesh bag - This will hold the compost and allow the beneficial microbes to pass through into the water.
• A pump - I use a battery-powered one connected to a USB power bank.

Now that you know the materials needed, you're well on your way to making and using your very own compost tea to benefit your plants.

How to Make Compost Tea

In this section, I will share the process of making compost tea in two simple steps: brewing and aeration, followed by straining the compost tea. This easy-to-follow guide will help you create a natural and effective fertiliser for your plants.

Step 1 - Fill A Bucket With Rain Water

Use clean, chemical-free water, as any contaminants in the water will likely kill the beneficial microorganisms in the mixture. Rainwater is perfect if you have a water butt.

Step 2 - Fill A Muslin Bag With Compost

Get some compost, homemade if possible, and fill up a mesh bag with it. I use a muslin bag with a simple drawstring at the top.

Step 3 - Add The Bag To The Water

Pop your bag into your water. Give it a good squeeze to mix the compost and water together well. Your water will quickly turn brown.

Step 4 - Add Microbe Food

Now add the special microbe food; this bottle I use contains everything you need in one simple formula, so you don't need to add many individual ingredients.

Step 5 - Aerate The Water

Now I pop the outlet from my battery-powered air pump into the water. I use the bag of compost to weigh it down so it doesn't float on the surface.

Now I will let the tea brew for 24-36 hours.