Freezing yeast

[dennisdk2000]

Is it possible to freeze yeast without damaging it? If so, how do I do it? I've heard something about using a glycerin solution, but don't have any details. I would have thought that the yeast cells would be destroyed when the water inside them freeze?

Dennis

 

[Mark1964]

Ive just took some thwaites nutty black yeast from the freezer yesterday it has been sat in 1 litre of wort in a conical flask and is now showing signs of fermentation. I am amazed i thought it would be dead. Apparently when it freezes it does damage some of the cells. Jim (evanvine) has a chest freezer with lots of frozen yeast he is the man you need to talk to regarding freezing and acid washing the yeast. :thumb:

 

[dennisdk2000]

Cheers Mark!

Acid washing yeast :shock: Doesn't sound pleasant, but I'll ask Jim about it!

Dennis