I remember back in the 90's a person I know went to Mexico on trips (yah to buy drugs, the prescription kind though, about six months for what he would be paying here for 1 month) and he would bring back a large container of detergent for me, I could use Teaspoons of this product to do what a cup of the stuff they sale here, and I do mean the concentrates!!!!!!!! Need to go down there myself and bring some more back!!!!!!!!!!!!!!!