The stubble machine is used to produce baijiu. In the process of production, the use of the stubble machine has greatly improved the work efficiency and made the quantity of wine making increase. We know that rice husk will be used in the process of wine making. Many people are very curious about why to add rice husk, why to add rice husk, and how much to add? The reason of adding rice husk in wine making process is shared below.

一、稻壳的理化特性

1、 Physical and chemical properties of rice husk

稻壳是由外颖、内颖，护颖和小穗轴等几部分组成，外颖顶部之外长有鬓毛状的毛。正稻壳则是由一些粗燥的厚壁细胞组成，其厚度大约24~30微米，稻壳富含纤维素、木质素、二氧化硅，其中脂肪、蛋白质的含量较低，基于稻谷品种、地区、气候等差异，其化学组成会有差异。

Rice husk is composed of exoglume, endoglume, protective glume and rachis. There are sideburns on the top of exoglume. Rice husk is composed of thick walled cells with a thickness of about 24-30 microns. Rice husk is rich in cellulose, lignin and silicon dioxide. The contents of fat and protein are relatively low. Based on the differences of rice varieties, regions and climate, the chemical composition of rice husk is different.

1、稀释淀粉含量，冲淡淀粉。

1. Dilute the starch content.

粮食中淀粉含量在65%左右，发酵入池淀粉控制在17~22%之间。加入稻壳起到冲淡淀粉作用。

The starch content in grain is about 65%, and the starch content in fermentation tank is between 17% and 22%. Adding rice husk can dilute starch.

2、稻壳具有弹性，起到疏松作用。

2. Rice husk is elastic and loose.

这样发酵的粮醅含有一定量空气，白酒酒曲在有氧的情况下大量繁殖，无氧发酵，借助稻壳使发酵的粮醅含有一点点空气，正好使酵母菌等繁殖起来。

Fermented grains contain a certain amount of air. Baijiu starter is bred in aerobic condition, and is fermented without oxygen. With the help of rice husk, fermented grains contain a little air, which can make yeasts grow.

3、托水功能。

3. Water holding function.

白酒发酵过程在窖池中进行，有了稻壳可以拖着水，使窖池内上下层发酵均匀，不于上层发酵的不好，下层水过多。

The fermentation process of Baijiu is carried out in the cellar. With rice husk, it can drag water, so that the upper and lower layers of the cellar can be fermented evenly, not the upper fermentation is not good, and the bottom water is too much.

二、加入稻壳的时间：

2、 Time of adding rice husk:

入窖加入谷壳，可以疏松酒糟，不致入窖粮糟发粘，还可以降低酸度，利于发酵。用凉茬机蒸馏时加入谷壳，可以使酒糟摊撒均匀，不压气，提高出酒率。

The addition of husk into the cellar can loosen the distiller's grains, prevent the grains from being sticky, and reduce the acidity, which is conducive to fermentation. When distilling with cooling stubble machine, adding rice husk can make distiller's grains spread evenly, do not press air, and increase liquor yield.

三、需要加入多少稻壳凉茬机

3、 How many rice husk cooling stubble machines need to be added

稻壳中含有多缩戊糖，果胶质和硅酸盐等成份，在发酵过程中影响酒质，所以其用量要严格控制(一般控制在8%比较合适)，并且使用前进行清蒸，多缩戊糖在微生物的作用下生成t醛。稻壳要求新鲜、干燥、无霉烂。

Rice husk contains pentose, pectin, silicate and other components, which affect the quality of wine during fermentation. Therefore, the dosage of pentose should be strictly controlled (generally controlled at 8% is more appropriate), and it should be steamed before use. Pentose can produce t-aldehyde under the action of microorganisms. Rice husk should be fresh, dry and free from mildew.