Well I pour a 6pk of beer and leave about 1" in each bottle. Flame the Bottle neck and lip and then alcohol both. Boil up some water and make some wort with light dme. put in a 2l flask and let it stir for 18-24hrs. Put in 1gal jug with airlock for 6hrs. Decant solution and separate into mason jars. Everything is sterilized with bleach water solution, the rinsed with boiled water, and light misted with 90% Iso Alcohol. I have used this method for awhile now and I like bleach and Iso Alcohol over starsan or stuff like that.