QUOTE(TJaehnigen @ Jun 20 2006, 04:17 PM)

OK, maybe I know even less than I thought! So, what is the official definition of proofing? I had thought it meant allowing time to pass to allow the yeast to do its thing on the dough before you actually are able to work it out to the shape you want and then thus make-a-the-pizza. But I guess that is wrong?
As for warm places in the house, we only live on a single level and when we redid the kitchen, the cabinets go to the ceiling so I can't stick a bowl up there. I guess just stick it in the laundry room (no AC there) on a warm summer day, eh?
By the way, thanks for the King Arthur's tip. My wife had just thought of that yesterday and so we'll give that a whirl. But why keep it in the freezer? And that vacuum-packed brick of yeast, is it in packets? Or do you just break some off to use every time you need some (and do you keep it stored in the freezer too)?
"Proofing" in baking can mean a few things:
1. Initially dissolving the yeast in liquid and, typically, a bit of sustenance for it (flour and/or sugar) and then allowing it to sit for a bit to see if it gets bubbly, thus getting proof that the yeast is viable.
2. Letting the dough rise, usually covered in a bowl. This is for better texture and/or flavor in the finished bread.
3. Letting the dough rise after forming into the desired shape. Also sometimes referred to as the "final proof".
Unless I am using yeast that I suspect of being abused (being kept in very damp or warm conditions or is past its expiration date) or if I am using fresh yeast (which is not granulated, but comes in a little disc and is only found in the refrigerator section of the store because it is very perishable), I never bother with proofing the yeast as in #1. It is rare to get a bad batch of dry yeast.
As to proofing as defined in #2 and #3, that is all dependent on your recipe and what type of taste and texture you want in your finished product. Most recipes call for a couple of rises, some a half-dozen and a few only one. If you have no proofs, you are probably making some type of flatbread -- crackers, pita, and such -- where the yeast is more responsible for flavor than leavening. Most thin-to-medium-crust pizza recipes do not call for a final proof (but they may need a "rest" for 10-15 minutes during forming so the gluten in the dough can relax and you don't have to fight it to get it rolled/stretched to the desired shape).
You probably don't need to find a warm spot to proof your bread in during the summer or possibly even the winter. Like adding sugar to a dough, warmth will speed up the action of the yeast. This is good if you are in a hurry, but you will generally not end up with as much flavor in your bread once it is baked. Your dough
will rise in a cool spot, just not as quickly.
Lastly, I like to keep my yeast in the freezer because it protects it from both heat and humidity. Why? Warmth and moisture encourages granulated yeast to come out of "hibernation", but if they do that before you are ready for them and there is nothing around to eat, they will quickly starve to death. The KA yeast comes in vacuum-packed bricks and are around 2 cups of yeast once you open them -- that is a lot of yeast. I bake weekly and I still only go through about 4 bricks total in a year. I bought some tupperware containers with a tightly-sealing flip top, so it is simple to just scoop out the amount of yeast needed and dump it in the mixing bowl (and KA also sells a handy 2.25 teaspoon measuring spoon that just happens to be the amount of yeast contained in one packet

).