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Xiaogan Geely takes you to know the production method of Xiaogan rice wine.

2023-09-19

As the saying goes: a clever woman cannot cook without rice. Therefore, if you want to make delicious rice wine, you must choose some appropriate ingredients. When choosing glutinous rice, try to choose full grains, and the color should not be particularly white (many rice with too white color may be added with something, everyone knows). On the other hand, the choice of sweet koji should also be made by hand as far as possible, because the bacteria in it are rich, so the taste will be more rich. For example, Anmou sweet koji is often a single strain, and the taste is sweet, but the fragrance will vary a lot, and it is not suitable for making wine.

Having said the selection of materials, let's talk about the problems that need to be noticed in the production method. First of all, we need to simply understand the process from glutinous rice to sweet wine/rice wine and what it will go through. First of all, it is the saccharification reaction. This process is participated by Rhizopus in koji, which decomposes starch into sugar through aerobic respiration. When this process is basically over, that is, when our sweet wine is initially made, we will feel that the sweet wine is especially sweet, and the sour taste and wine taste will not be obvious. And the next process, when the role of the root mold is not obvious, the yeast begins to power, the sugar into acid and alcohol. In this way, we will find that sweet wine begins to become "fierce", that is, the taste of wine becomes heavier and the sweetness decreases, and this process is mainly caused by anaerobic respiration of yeast.

Through such a simple explanation, you may understand why sometimes we wrap the rice that has just been mixed with koji tightly with plastic wrap, and the sweet wine made in the end is not sweet, on the contrary, the wine tastes heavy and even a little sour. It is because of the lack of air in this process that Rhizopus loses its working environment and does not convert starch into monosaccharides, but yeast dominates and directly breaks down starch into alcohol.

Next, I 'd like to talk about what else we need to pay attention to during the production process. First, the health situation. In the process of making rice wine, the introduction of miscellaneous bacteria may lead to the weakening or even disappearance of the advantages of bacteria favorable to the reaction, resulting in the final sweet wine/rice wine sour and black. Therefore, in the production process, all tableware or hands that can be touched must be cleaned. Second, is the temperature. Because koji is an active substance, koji needs to be active in order to have an effect. Too high or too low temperature will reduce the activity of bacteria, which is not conducive to fermentation. This is why cotton wool needs to be covered in winter to keep warm, and the reason why it is simple to cover it in summer. Again, it is the ratio of the amount of koji and rice. If the relative amount of koji is too large, it will lead to too fast fermentation, which will produce the effect of too fast wine taste, while the relative amount of koji is too small, it will slow down the fermentation reaction speed, making us eager to see through. Therefore, we need to know more about the quantity of koji and rice than we do, and we usually need to ask when we buy it.

2023

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09-19

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