Late 2020/early 2021 yeast question

[zchan]

So I went to my LHBS and asked for some imperial yeast. The guy who runs the shop says "I don't have any on hand.. well, actually, hang on", and comes back out with a box of Imperial yeasts that are from late 2020/early 2021. He said that they had been out of the refrigerator for "a few days". None of the packages are swollen. I now have Citrus, House, Joystick and Sour Batch Kidz. Two packs of each. I'm not sure if any of these are good, which is why I'm making this post. Are these likely any good? Even if they aren't any good, that guy at the LHBS is the man and he didn't have to do that. Thanks in advance!

 

[Bobby_M]

The calculated viability is about 1%. I wouldn't risk a brew day on it.

 

[zchan]

The calculated viability is about 1%. I wouldn't risk a brew day on it.

Oof, that sucks.. thanks for the quick reply

 

[Blackdirt_cowboy]

I just took a 5 year old pack of Wyeast 2206 and built it up in three steps and have a nice thick layer of viable yeast at the bottom of the jar. If you’ve got some DME and some time, you can probably save it.