OTO Compost Tea 6.13oz brews are the most user-friendly compost tea brew on the market today. Not only are they easy to use, but they are also the most cost-effective method of brewing high-quality compost tea. Compost Tea has a unique, two-part system that keeps the product stable until the time of use. The Tea Brew pouch contains the compost material and the microbe food pack provides a food source designed to multiply microbes during the brewing process. Our special blend of organic matter has been shown to break down nutrients and make them available to your plants as well as increase the microbial population in the rhizosphere.