Speeds the breakdown of organic material in your compost pile. Contains specially selected strains of enzyme-producing bacteria to aid decomposition. Highly concentrated, containing 1 billion viable microorganisms per gram in a base of kelp and bran. May be sprinkled dry or dissolved in water. Use at rate of 1 1/2 teaspoons per cu.ft. or 12 oz. per ton of compost materials. Best used within 2 years. I use this in my own tumblers and it seems to speed things up by two weeks. David"s Garden Seeds is a Veteran owned business.