Can I drink fresh milk directly if I keep a cow at home?

Of course not. There are still many bacteria in the milk at this time. If drinking it will cause some symptoms such as diarrhea and stomachache, it is best to disinfect it first.

The most commonly used pasteurization method is high-temperature short-time sterilization. In actual production, the elimination of all tuberculosis bacteria means the elimination of all other germs. Pasteurization can also destroy all yeast, mold and bacteria in milk and most plant cells. After pasteurization, fresh milk will also deteriorate. In addition to photocatalytic oxidation and the deterioration of oil by various enzymes in milk, corruption is mainly caused by the reproduction of bacteria. It rarely turns sour and caked, which is usually caused by lactic acid bacteria.

Reference: Fresh Milk _ Baidu Encyclopedia