Store dry yeast in freezer?

[iancraig]

Hello,

apologies if this has been covered before, but a quick search didn't turn up the answer ..

Should I be keeping my dried yeast sachets in the freezer?

Up till now I've been using S-04 from Fermentis and that mentions nothing about the freezer.

But I just got a couple of packets of Danstar Windsor Ale yeast, which says to freeze them. They are also vacuum packed, as opposed to the S-04 which is not.

Is this just down to the different strain of yeast needing different storage, or should I keep all dried yeast frozen?

Many thanks,

Ian

 

[PD]

depends more on how long your going to keep them fridge is good for 6 months to a year.
If you use freezer it prolonged cold temp may kill the yeast. would be better to make a yeast starter with added glycerine and store that in the freezer.

Fridge is easier.

 

[iancraig]

Great. Fridge it is. Thanks.

 

[jonnymorris]

Why would prolonged cold temp kill dried yeast but not liquid yeast? The glycerine is added to liquid yeast to overcome the issue of ice crystals forming thereby damaging the cell walls. I don't see this issue with dried yeast.

I'd suggest storing dried yeast in the fridge will be appropriate for the life of the yeast which is normally two years from manufacture. I'm sure a quick search of the manufacturers web site will provide the best advice.

 

[Dunfie]

I keep my supply of dried yeast in the freezer along with my hops and never had any adverse results. However given that dried yeast is viable for so long it is not necessary to freeze it - I just find it convenient to keep it all together and I have a space in the freezer for it all.

 

[tommidolcetto]

If it's dried surely it doesn't actually freeze?

 

[John_Henry]

You will not have any problem freezing your dried yeast should you wish.

 

[rpt]

My packet of Windsor says to store between 5 and 10 degrees. The only advice for dried yeast I've seen is to store cool and dry.