Why did medieval Europe have this habit of drinking only without water and drinking wine as water?

In medieval Europe, people drank only water instead of water. Are they too rich or crazy? This is not to say that people have more money or bad brains, because at that stage, drinking is healthier than drinking, and drinking is cheaper than drinking.

Water was more expensive than wine at that time. At that time, the population of the city increased, diseases were rampant, the city was dirty, and all kinds of bacteria were mixed in the water like hidden killers. Because there is no advanced water treatment system, it is difficult to get clean water. You may have to bring domestic water from other places, which makes the price of "clean water" higher. At the same time, people in medieval Europe did not have the habit of boiling water for disinfection. Because people live with animals, the waste treatment technology is backward, and there is no sense of garbage classification. Drinking water is often seriously polluted, and excessive impurities and dirt lead to various diseases.

Wine has become their daily drink, and almost everyone drinks it every day. Wine, on the other hand, removes most impurities, and the ethanol inside can kill most bacteria, which is relatively hygienic and safe. It has a long storage time and is not perishable. It can be said that this was the only choice for people when the epidemic was serious in the Middle Ages. France, Italy and other places have vast terrain and abundant sunshine and rain. The local grapes grow well. Wine was also an important industry at that time. After water pollution, many nobles began to drink wine instead of water. In northern areas such as Germany, people will drink beer made of wheat.

In fact, not all people drink wine instead of water every day. After all, there are civilians. Not everyone has money to drink every day. People in the lower classes often have no conditions to enjoy this relatively luxurious life, so they mainly drink water.