1, from the service level of equipment manufacturers.
Pre-sales service includes telephone communication, which is the first step to judge whether the manufacturer is professional or not, and the other is on-the-spot investigation. If a manufacturer doesn't let you go on a field trip, but orders directly on the website, then you can see that this manufacturer is a very poor manufacturer, because brewing is a very professional technology, and there are many things that can't be clearly expressed in words.
2. After-sales service from the manufacturer.
Regularly inquire about the usage, equipment problems and technical problems of small-scale brewing equipment. If there is any problem, the manufacturer can solve it.
3. Brewing equipment model
The model mentioned here refers to the weight of a feed, ranging from small equipment to large winery equipment. If you brew white wine at home, small brewing equipment is enough. If you want to run a winery at home, the brewing equipment at home is still ok. Of course, the winery equipment is suitable for friends who run wineries.
4. Materials of brewing equipment
At present, the mainstream brewing equipment on the market is made of aluminum, stainless steel, copper and other materials. Brewing equipment made of aluminum alloy is forbidden by the state, and the brewed wine contains substances that are carcinogenic to human body. Neither aluminum nor aluminum alloy is desirable, and the wine can not meet the testing standards.
Matters needing attention in brewing:
1. Liquor brewing is also a process of microbial metabolism, and temperature control is very important for liquor production. If we can't control the fermentation temperature well, we will inevitably lose liquor, and the fermentation temperature should be controlled at 25-35℃.
2. It is a good method to reduce the alcohol content of liquor with pure water, and the essence of reducing alcohol content is the process of diluting various components in liquor, which will inevitably lead to the weakening of taste and aroma. First of all, it is not recommended to reduce the alcohol content of liquor too low. Secondly, the original liquor itself should be rich in aroma components, so that the water taste will not be heavy after the alcohol content is reduced. It is suggested to use aging machine while reducing alcohol content.