Frozen White Labs

[abonzer]

Due to the recent Thanksgiving Holiday my Fedex package containing brew supplies sat at my doorstep for a few days at below freezing temperatures (25 degrees). This package contained White Labs liquid yeast. Does anyone know if this would harm or ruin the yeast?

 

[EvilTOJ]

If it actually froze, then it's a goner. You could try making a starter (that's what I'd do if I were you, I hate throwing things away) to see if it's going to recover, but it doesn't sound likely.

 

[abonzer]

I went ahead and pitched it anyways since I didn't have the necessary materials to make a starter. There is a little airlock activity so I think I got lucky.