The cleaning and sanitizing solutions in this kit are widely used by micro breweries. Designed for low environmental impact and effective cleaning, these formulas proved so popular that Five Star developed this kit for home brewers. The best low impact cleaner on the market, it really works on tough residues built up on hard to clean carboys, kegs, and brew pots. The kit contains one 8 oz container of Star San sanitizer and 8 packets of 5 Star Powdered Brewery Wash plus information and instructions.