Erlenmeyer Flask on Electric Burner

[scone]

If you boil in the flask it will want to boil over but a drop or two of a defoamer like Fermcap S or Five Star Defoamer will prevent that. If you are worried about putting silicon in your beer, just chill and decant the starter before using. I always boil my staters in my 2 L flask (on a gas stove).

 

[matt2778]

If you boil in the flask it will want to boil over but a drop or two of a defoamer like Fermcap S or Five Star Defoamer will prevent that. If you are worried about putting silicon in your beer, just chill and decant the starter before using. I always boil my staters in my 2 L flask (on a gas stove).

I couldnt get fermcap s or the starsan equivalent but I did a little research and infant gas drops(simethicone) is essentially the same thing. 2 drops and no more boil overs.

 

[TyTanium]

... infant gas drops(simethicone) is essentially the same thing. 2 drops and no more boil overs.

Really? I gotta try this! My infant only needed it for a day or two, so I've got a nearly full bottle left over.