when to add fermcap and how much?

[chemman14]

What is your experience with fermcap? Im thinking I should add it after I stir in my extract and use 3 drops per gallon. Is this correct?
thanks

 

[DrinksWellWithOthers]

I add it when my beer's on the verge of boiling. I've never had to use more than a few drops for an entire 6 gallon batch.

 

[rico567]

+1 Add it when it's ready to boil. I started out adding the recommended 10 drops for a 5 gallon batch.....and am now cutting back to find the actual needed amount. What's strange is that on my last batch, without thinking, I mistakenly added the recommended dose (1/4 tsp) for 5 gallons of 5-Star's Super Moss, evidently the concentrated active ingredient (carrageenan) in Irish Moss. Stranger than that......it worked in preventing any kind of boilover. I only thought about it later. Never even got the Fermcap-S out of the fridge.....