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Old 11-15-2012, 05:57 PM   #1
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Question Why does my yeast go bad b/f expiration date?

I have had this dry yeast in a glass jar. I was baking a lot of pizzas before summer came. I don't bake at all in summer, due to the heat. I started baking about two weeks ago the first time in the fall, the dough for the break did not rise much, and it felt funny after it rose. I thought that I did not make the dough well. Yesterday I made my pizza. The dough did not rise well, and again it felt funny and gluey just like the one two weeks ago.

The funny thing is that I only did not constantly use the yeast for 3 months or less, and the yeast is not even expired yet. I have always kept it in the frige. Thus, I don't understand why the yeast did what it did.

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Old 11-15-2012, 06:24 PM   #2
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Maybe the yeast forgot to check their teeny little calendars.

Seriously, expiration dates only apply to products that haven't been opened. Once you break the seal, all bets are off.
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Old 11-15-2012, 07:21 PM   #3
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Cold dry storage works pretty well for us. Older yeast should also work if you increase fermentation time.
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Old 11-15-2012, 07:38 PM   #4
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I keep mine airtight in the fridge. Mine was 2 years past expiration and worked great (instant yeast). I just opened another bag from the same purchase, 2 years out of date, and it works fine, it was vacuum sealed like those bricks of coffee. I buy the big packs at the warehouse club, 2 pounds for under $5, heck if you throw half of it away it's still a bargain!
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Old 11-15-2012, 07:42 PM   #5
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Airtight container in the feezer here (also instant yeast). It has worked on the rare occassion I use it for breads just fine. Maybe it was something else that killed your rising??? Too much salt???
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Old 11-15-2012, 07:46 PM   #6
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Keep mine in the fridge, no problems so far.
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Old 11-15-2012, 09:03 PM   #7
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I freeze yeast in a baggie. It keeps for years and remains granulated.
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Old 11-15-2012, 09:53 PM   #8
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Huh. Will put mine in the freezer.
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Old 11-15-2012, 10:18 PM   #9
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You can refrigerate or freeze it and that may buy you some time. But then again, it may not. It's not completely predictable. I've had some yeast last past two years. I've had other yeast that's gone bad within a few months. Once you open it and it's exposed to air, it begins to degrade.

The best advice is found right on the container itself.

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Old 11-15-2012, 10:30 PM   #10
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Quote:
Originally Posted by bakechef View Post
I keep mine airtight in the fridge. Mine was 2 years past expiration and worked great (instant yeast). I just opened another bag from the same purchase, 2 years out of date, and it works fine, it was vacuum sealed like those bricks of coffee. I buy the big packs at the warehouse club, 2 pounds for under $5, heck if you throw half of it away it's still a bargain!

No warehouse clubs here, but I still buy bulk. $4.25 for about a pound, put it in an airtight canister and keep it in the fridge. It made it through the summer here no problem and is still working fine. I made grilled pizza last week and got a super rise. I can't imagine buying the little packets with as much baking as I do down here.
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