rycov
Well-Known Member
With dry yeast it's a good idea to rehydrate it. Apparently when yeast are dry they are real susceptible to whatever they come into contact with, before they are hydrated their cell walls will let in contaminates that will kill a bunch of the yeast and knock down your overall viability up to maybe %50.
i just wait untill my beer is in the fermenter and open it up and dump straight in. doesnt come into contact with anything. my hands are always sanitized and i just tear the corner of the packet. i cant really see where putting it in water first is any cleaner (not that it may not be important for other reasons)