How to heat milk in the oven?
Milk is rich in protein, and liquid protein particles will change greatly when heated. When the milk reaches 60-62℃, there will be slight dehydration, protein particles will change from solution state to gel state, and precipitation may occur. There is also a very unstable phosphate in milk, which will form sediment when heated.
When milk is heated to about 100℃, it will also produce a small amount of formic acid, which will make milk sour. The best boiling method is pasteurization: heat the milk to 6 1. 1 to 62.8℃ for half an hour, or to 7 1.7℃ 15 to 30 minutes, which can kill bacteria. If you can't control the above humidity, you can also boil the milk for 2 to 3 minutes, but never boil it for too long.
How to heat milk in the oven?
There are two kinds of liquid milk: normal temperature milk and low temperature fresh milk. Fresh milk preserved at low temperature usually refers to milk that has been pasteurized and homogenized with raw milk, also known as pasteurized milk, commonly known as fresh milk. This milk does not contain any stabilizer, thickener, emulsifier, etc. Enterprises producing fresh milk should have enough raw milk, which can be purchased from local herdsmen or dairy farmers, but it is best for enterprises to have their own milk source base, which is conducive to ensuring the health of dairy cows and the nutrition and hygiene of milk. The construction of milk source base needs a lot of money, so the enterprises that produce fresh milk need a certain scale.
Normal temperature milk is milk with ultra-high temperature sterilization technology. Because of its long shelf life, convenient storage and abundant nutrients, many people prefer to buy normal temperature milk in their lives.
How to heat milk in the oven?
The other is direct injection heating with hot steam. Fresh milk after ultra-high temperature sterilization must be filled with anti-milk under aseptic conditions until the packaging prospect of fresh milk is 1.5. The consumption of fresh milk is quite large, and its packaging form has certain social significance. Repeatedly recycled glass bottle packaging is a traditional packaging form, and consumers are used to it. However, considering the production department and transportation department, the biggest advantage of glass bottle packaging is low cost, and there are also many shortcomings brought by the foundation, such as transportation, storage, worn-out and cleaning of empty bottles. Therefore, new packaging such as cartons and flexible packaging is also increasing.