Yeast is a one-celled organism that provides the leavening (rise) to breads. It is usually sold dry, in small granules, and must be activated with water and heat. Yeast is also used to ferment wine and beer: it consumes sugar, and produces alcohol as a byproduct.

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Does active dry yeast really expire?

I was cleaning out my spice cabinet and deep in the back I found two packages (e.g., six envelopes) of active dry Red Star yeast that expired in March 2009, 15 months ago as of writing this question. ...
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How do you raise your dough in cold seasons?

It is winter down here in Australia and I find it challenging to find a warm spot to raise my bread dough. What I have been doing is placing the dough in the oven (not switched on) with a pot of hot ...
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What to do about yeast that doesn't work?

I am using a new container of yeast from the store; I keep it well-sealed (it's a small jar) and refrigerated. I make sure to use warm water in bread recipes - I check the temperature using a ...
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How can I bake bread using a mother culture?

If I want to make bread using a 'mother' culture what do I need to do? How do I go about starting the 'mother'? How should I keep the 'mother' going? and how do I use the mother in my bread? What ...
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Is there any difference between bakers yeast and regular yeast?

I'm looking at this bread recipe and it says to use "Bakers Yeast" but when I make pizza dough I just use regular yeast (which I also have in my cupboard at the moment). So I'm wondering if I could ...