I put the powder in before I put the clothes in. I've never calculated how many loads per the 4 cups but I use about 3 tablespoons per large load. Smaller loads would be less. So whatever that maths out to be. After you put the three ingredients together, make sure you shake it well. I put it all in a half gallon jar with a lid so I can shake it really well. Then I pour it into an old Oxyclean container so I can scoop it out easierI have a front loading HE machine too. So, you just throw the clothes in, then throw in the powder and run it? How many loads do you get out of that 4 cups of powder?


