Hi. I currently use a 3:1 ratio of oxy clean free and TSP (3 pounds:1 pound) when cleaning my equipment. I combine it and use 1/2 - 3/4 scoop per 5-gal keg, fermenter, etc. The oxy clean is ok enough; however, the TSP is less environmentally friendly. Do any of you know other options? I was thinking about Simple Green; however, it has a very strong smell. Thanks.