How long is long enough?

[NikoBrew]

This stuff prevents boilovers and you only need a TINY amount (2 drops for a 5 gal batch of beer)
http://www.brewmasterswarehouse.com/pro ... cap-s-1-oz

"How long is long enough?"
Depends on how tall she is maybe?

[brewinhard]

I do 15 min. boils for my yeast starters, but then again I am anal with making sure my bacterial/wild yeast adversaries are completely destroyed. I just think what is an extra 5 min. for peace of mind when making a wonderful batch of brew?