Cooling yeast starter

[rkorn74]

Before I ruin my flask, can anyone comment on putting a flask that was used to boil water and DME on a stove top in a kitchen sink with tap water?

 

[MustBeZ]

Won't hurt anything. Make sure you don't splash any water in it and you might also want to throw in some ice cubes to speed up the cooling.

 

[Cyclman]

I put mine in ice water. I wait a few minutes for it to cool somewhat before dunking it.

 

[Revvy]

If you have a pyrex erhlenmeier flask, they're popular for exactly that reason. From stove to sink without cracking. Unless you flask is over 20 years old that is. I had an old one crack from thermal shock doing that.

 

[rkorn74]

Thanks for the info. My starter is on the stir plate spinning away. Will I notice anything as the wort starts to ferment?

 

[helibrewer]

It will get a very creamy color and you might see just a hint of white foam on the surface. They usually finish in 18-24 hours.

 

[Revvy]

I wrote this about starter activity years ago.