Milk with shelf life 12 months has three months left. Can I drink?

Theoretically, no milk beyond the shelf life is drinkable. But I don't know that the shelf life of the milk you mentioned is 12 months, so it's better to drink less.

Dairy products on the market now can be divided into "low temperature milk" and "normal temperature milk" according to the sterilization process. Low-temperature milk is sterilized by pasteurization, which is also called "fresh milk". This kind of milk is the best kind of milk, which is characterized by killing harmful bacteria in milk and retaining all the nutritional value and natural flavor of milk. The shelf life of low-temperature milk is very short, generally less than 7 days, and it needs to be refrigerated at 2-6℃. Normal temperature milk is sterilized at ultra-high temperature. This kind of milk is actually the so-called canned milk that is very common in the market, and the products you mentioned also belong to this category. Although normal temperature milk kills harmful bacteria in milk during sterilization, it also destroys active nutrients in milk to some extent. Normal temperature milk has a long shelf life, generally within 8 months, and does not need refrigeration. The nutrients in it, especially vitamins and minerals, will gradually disappear with the passage of storage time, and the more critical it is, the less nutrients it will have. Therefore, you should still drink pasteurized fresh milk.