The SFI recipes calls for the addition of humic acid. Are you other "brewers" using this ? if so what brand and source please ?
Laura Sabourin Feast of Fields Inc Demeter Certified Vineyard & Farm http://www.ragdolls.net/vineyard.htm Ragenesque Ragdoll Cattery http://www.ragdolls.net/ragenesq.htm R R # 1 St Catharines, Ontario L2R 6P7
