HOnestly thats not a great process for it. They reccomend soaking it for 3 minutes which is WAY to long, and would give you a green, most likely nasty concentrate. You want to quick wash with alcohol, so it doesn't pull chlorophyll during the process. I do 3 washes to seperate out the best for worst quality and still get max yield. Each wash is started and finished in about 30-45 seconds, and the whole process takes about 5-7 minutes total. Wash fast and as cold as possible to get the best results. I also don't chop or heavily break up the material any more than necessary. The more surface area the plant material has exposed the easier it is for the alcohol to pull chlorophyll.