Partially frozen slurry

[ram5ey]

So I pulled a jar of yeast (Wyeast 1469) out of the back of the fridge to discover that it was partially frozen. We recent moved and I didn't realize the new refrigerator would get that cold in the back. I was planning to use this to make a starter later today. Any thoughts? It looks like the mainly frozen part is the liquid and not the yeast.

 

[laredo7mm]

I think you should be good to go. Your starter will confirm that though.

I freeze my yeast, but I use a 15% Glycerine solution as an antifreeze and haven't had any issues. Sometimes they are a bit slow to start, but usually ready to go in 36 hours max.

Since the ice isn't really on the yeast, I think you will be just fine, or marginally impacted by the partial freeze.

 

[m00ps]

Even if the thing entirely froze itll be ok. Ask me how I know, dumb fridge

 

[Morrey]

I had a WLP029 slurry do the same thing you are showing. Thawed room temp, made a starter and it took off like a rocket when pitched.

 

[ram5ey]

Thanks for the advice. Ate through the starter just fine.

 

[jigtwins]

Good to know.

 

[IslandLizard]

I put my jars in a box, so the cold blast from the fridge doesn't hit them directly.

 

[ram5ey]

I put my jars in a box, so the cold blast from the fridge doesn't hit them directly.

Good idea