The word "sieve wine" was widely used in ancient times. It has been passed down. Today, there are still remnants in the dialect. Even in Hunan Province, there are two words "sieving tea" and "sieving water". In fact, there is no difference between "sieving" and "pouring".

It is a kind of wine made by fermenting grains or other sugary substances and then filtering them. Since there is no distillation commission, many grain impurities remain in this wine, so it is also called "muddy wine" and "yellow wine".

"Wine screening" is a simple filtration method that allows drinkers to remove impurities on their own. Let's take a look at Bai Juyi's "Ask Liu Nineteenth": green ants' new grain wine and red mud small stove. If you want to snow tonight, can you have a drink?

What are green ants? Why add green ants to new fermented grains? In fact, the impurities in new wine are small and dense, floating on the wine like ants. Do you have to cleanse yourself before drinking? Because it is grain and wine, and most of the grains used to make wine are not fully mature, the impurities still carry the green color of the fields, so it is "green ants". A county meeting came to Tao Yuanming's house just in time for his wine to mature. He saw Tao Yuanming picking the kudzu root on his head and using it as a filter cloth. After filtering the wine, he put it on his head again. Therefore, he left an idiom "Ge Jintong Wine" to describe Tao Yuanming's love for wine as a fetish, and drinking as a pride, straightforward and free. This is Tao Yuanming's method of "sifting wine".

But this is just a simple way to filter wine. Later, this process gradually came to be offered by manufacturers, that is, brewers. After the wine is finished, filter it through a sieve, or wrap it in a cloth and squeeze it out directly. In this way, the filtered wine will be clearer and taste better than cloudy wine. This kind of wine is called "sake". The purity of alcohol has also increased, making it easier to get drunk, and the price is naturally more expensive.