1

I am considering plating up some yeast/isolating cultures and starting my own small yeast bank, I know that If I were to keep these at -80C in a lab freezer they would keep for years, but how long should I expect them to stay viable in a domestic fridge or freezer?

1

There are really too many factors to give a solid time frame when all the cells will have died.

I've had year old trub I've been able to make starters from.

If I had to pick a safe age I would reslant a precious strain ever 3-4 months.

| improve this answer | |
1

A slant/plate made directly from a starter will likely stay viable longer than that picked up from trub. I'd estimate under decent conditions it should be good for up to about 6 months.... longer if under optimum conditions. But like Evil Zymurgist said, there are many, many factors at play here.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.