Frozen Yeast (for bread)

[carbon]

I recently got a friend interested in bread baking. She bought some dried yeast and put it in the freezer. A couple days later (today), she went to get it out, and noticed that it specificly states not to freeze it. I think the yeast will still be fine for her purposes, but I wanted other peoples opinions on this. Is this yeast still viable?

[backyard brewer]

The only way to find out is to proof it. Put about a 1/4 cup of warm water and a tsp of sugar. Stir the yeast up in there and see if it starts to foam in about 30 minutes or so.

You should do that anyway when baking.

[carbon]

Good call.

[BrewMasterBrad]

Freezing by normal means is generally bad for yeast, but it may not have killed all the cells. Go ahead and proof it and see what happens.

[brahn]

I've frozen dried bread yeast many times and I've never had a problem with it. Like BB says, go ahead and proof it and see if it's alive.