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No, combining yeast with sugar will not produce gas. Yeast must be dissolved in water with starch or sugar in order to begin fermentation producing CO2 gas.
Denis Block
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Do you expect yeast to produce gas when sugar is available?
Yeast will produce gas if sugar, water, and warmth are available as long as the yeast is still alive. If it is too old or has been too hot and the yeast has died it won't create the gas.
Do you expect yeast to produce a gas when sugar is available?
Yes, in the presence of sugar, yeast ferments releasing carbon dioxide (which makes the bubbles in bread dough).
Can yeast be altered so it cannot produce a gas when sugar is available?
Yeast can be killed with heat, that is why you use warm water to start it, not hot.
What does dry yeast need to produce gas?
Warm liquid and sugar.
Why does cornmeal work with yeast to produce gas?
Yeast eats the sugar in the syrup. It then poops out co2 and alcohol. The carbon is a byproduct that comes from the yeast after eating sugars.
Do yeast cells make their own food?
No. Yeast cells need some type of sugar to digest and produce gas.
Why cant salt and yeast make the balloon inflate?
As anyone who bakes bread, or brew wines and beers will know, yeast needs a moist, warm environment in which there is dissolved liquid sugar available (not salt). The yeast cells rapidly multiply as the yeast feeds off the sugar, and gives off carbon dioxide gas and alcohol. It is the carbon dioxide gas that will inflate the balloon. Salt would probably kill off the yeast.
Why does yeast rise in bread making?
Yeast reacts with sugar to produce Carbon Dioxide gas. This makes the dough rise (and produces the 'holes' you see when you slice into a loaf).
Why does sugar make yeast rise faster?
Yeast is made up of microorganisms (fungi) that feed on starches and sugar, producing gas that makes dough rise. Yeast can digest sugar quicker than starches, so rises faster when sugar is included.
Will yeast give off carbon dioxide without using sugar?
Yes, yeast will produce gas when mixed with warm liquid and starch (flour) without additional sugar. But it will take more time to rise.
How much gas can yeast produce?
Yeast can produce more that 30 o/o or more
Can yeast produce a gas when no sugar or other food is available?
If there is nothing to metabolize, which is what yeast are doing with sugar, then they will most likely not grow and not produce any CO2. With that said, there are many strains that can continue to grow and reproduce with other chemical sources, not all of which create CO2 as a bi-product. That is to say, that sugar is not the only thing they can "eat."
