Some were asking about storage
Per wyeast -
Stability: 1 year, stored in airtight container in cool environment
Yep, can't hurt. And after all of my protestations, I tokk the extraordinary measure of actually contacting Joe to get usage info..surprise, surprise, I was wrong...again....here's what he said...
I add 1/4 tsp per 5 gal of strike and sparge water, and 1/2 tsp as a slurry 15-16 min before the end of the boil. If you like using the Irish moss for 15, then add it 1 min before that.
So it is water volume based, not batch volume. And it does indeed go in the sparge, too.
Do the kettle finings go in before or after the Brewtan B?