Yeast expands because in the heat, it eats and digests sugar, and then it produces carbon dioxide gas.
Yeast had been around for thousands of years. The ancient Egyptians used yeast.
Nutritional yeast is a form of deactivated yeast called "saccharomyces cerevisiae." It is made by mixing sugarcane and beet molasses, then harvesting, washing, drying and packaging the yeast.
In colonial times people saved their breads yeast by putting the bread on the window sill to collect the natural yeast from the air. They also collected or made their yeast from sourdough.
Medieval brewers used naturally-occuring yeast in flowers and leafy herbs which were added to the mix; they really did not understand where yeast came from and almost used it "accidentally", but understood that the yeast froth from a fermenting vat could be scraped off and used in the next batch.The term for yeast in Middle English is goddes good, meaning God's Good, implying that it was a sacred and mysterious substance created and given by God.
Alexander the Great helped expand Hellenism to the East.
Unlike other fungi, yeast have the capability to expand when heated.
Yeast is a leaven. A chemical reaction between the yeast and water creates tiny gas bubbles, making dough expand.
Adding warm water will expand yeast cells rapidly
it doesn't rise up because the yeast makes the bread expand.
To make elephant toothpaste with yeast, mix hydrogen peroxide, dish soap, and food coloring in a bottle. In a separate container, mix warm water and yeast. Pour the yeast mixture into the bottle and watch the foam expand.
Cake is made from batter not dough, which does not contain yeast, it does however expand when baking.
you puff up and expand into a giant loaf
Yeast dough is dough (basically a mixture of flour, water, salt) to which yeast (a form of fungi) has been added to cause the dough to 'rise', add in dimension by filling the dough with carbon dioxide given off by the yeast. Dough without yeast does not expand.
Yeast dies under the heat of baking, and the gasses it produced expand to make the bread rise further.
The gas released by yeast, CO2, creates bubbles, as the bubbles expand in the dough, the bread rises. As the bread bakes, the bubbles set and give the bread its light, airiness.
Yeast can be used to create elephant toothpaste by producing carbon dioxide gas through fermentation, which helps to expand the foam and create the explosive reaction.
Yeast is an small animal that eats food like sugar (candy bars,oreo etc) then it farts out a special type of gas. Put yeast in dough eat the sugar in it the releases the gas and makes the dough or bread grow and expand. And we can eat it. Yeast works better in the heat so0 then the bread will expand faster. but not too fast. that why we bake the yeast and dough and at a certain temperature so it does expand to slow or fast.