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Yeast is needed when making pasta. What should we pay attention to when eating yeast?

Yeast is a kind of fungus and is alive. If it is directly mixed with sugar, the yeast will dehydrate and die due to the high osmotic pressure of the sugar solution. However, because the temperature is too low, the yeast will be inactivated after contact. play a role in fermentation. In addition, the yeast should not be in contact with too hot water. Generally, the water temperature should not exceed 37°C, otherwise the yeast will die. Yeast is a unicellular fungus and not a unit of phylogenetic classification. A tiny single-cell microorganism invisible to the naked eye, which can ferment sugar into alcohol and carbon dioxide. It is distributed throughout nature. It is a typical heterotrophic facultative anaerobic microorganism that can survive under both aerobic and anaerobic conditions. It is a natural leavening agent. High sugar concentrations can kill yeast.

Yeast is a single-celled microorganism. It belongs to the fungi class of higher microorganisms. There is the nucleus, the cell membrane, the cell wall, the mitochondria, the same enzymes and metabolic pathways. Yeast is harmless and easy to grow. Yeast can be found in the air, soil, water, and animals. Can survive with or without oxygen. Yeast is a facultative anaerobic organism, and no obligate anaerobic yeast has been found. In the absence of oxygen, fermenting yeast obtains energy by converting sugar into carbon dioxide and ethanol (commonly known as alcohol). Most yeasts can be isolated in sugar-rich environments, such as some fruits (grapes, apples, peaches, etc.) or plant secretions (such as cactus juice). Some yeasts live inside insects. Yeast is a single-celled eukaryotic microorganism, usually spherical, oval, sausage-shaped, oval, lemon-shaped or lotus root-shaped, etc., much larger than the single-celled bacteria, generally 1 to 5 or 5 to 20 microns. Yeast have no flagella and cannot swim. Yeast has a typical eukaryotic cell structure, including cell wall, cell membrane, nucleus, cytoplasm, vacuole, mitochondria, etc., and some also have microbodies.

Yeast is often used in making steamed buns, steamed buns, steamed buns, and deep-fried oil cakes. It is necessary to grasp the condition of the yeasts first. Yeasts are in a dormant mode without pre-yeast powder, and when they are melted, they are called active Generate a large number of bacteria and a large amount of gas, so as to achieve the purpose of dough fermentation. One is to melt with warm water. The temperature of the water should be between 35 and 40 degrees. The method is to pour the yeast into the warm water, cover it and let it rest for ten minutes. Generally, the ratio of yeast to water is 1:20. Add 5 grams of yeast to 100 grams of warm water. The purpose of brewing yeast powder in advance is to activate the dormant yeast, reminding it to prepare for battle, and evenly distributing it in the noodles will improve the high fermentation efficiency to a certain extent.

It is not easy to use a large amount of wheat flour to make wake-up ingredients at home. For daily ingredients, the longer the time, the more common it is to use addition and subtraction. Especially for wake-up noodles, because the fermentation itself takes time, and the yeast powder will gradually dissolve and swell when it meets water or wheat flour, so the yeast powder can be sprinkled into the flour immediately and kneaded together. Under the mutual influence of amplitude and speed, it can knead evenly and smooth quickly. Yeast is as gross as a weed. As long as you don’t burn it, use 1 gram and 5 grams, and use it without solidification.

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