I recommend buying the 20-gram packets and some 5-gram packets. Then you place one of each in a five-gallon bucket. However, I have used 5-gram packets and just thrown 5 packets in a 5-gallon bucket. 1 pint - 1 gram of desiccant 1 quart - 2 grams 1 gallon - 5 grams 2 gallon - 10 grams 5 gallon - 25 grams