The right way to cook milk
The correct way to cook milk is to cook it in high heat, because it takes a long time to cook milk in low heat, which will lead to the loss of nutrients in the milk by air oxidation and reduce the nutritional value. Therefore, boiling milk for a long time is the most inappropriate method. For the method of boiling milk, many people still have the following questions.
- Is the milk ready for a long time?
Milk cannot be boiled for a long time. When heating, we will find that the colloidal protein particles of milk change and then precipitate. When the temperature reaches 100 ℃, the lactose of milk begins to scorch, and white milk turns brown, which will decompose into lactic acid, and a small amount of formic acid will be produced. At this time, the taste of milk will change and start to become sour. The nutritional value will also deteriorate.
- How long will the milk cook?
In general, boiled milk should be boiled for 2-3 minutes after boiling. Generally, a cup of about 250ml milk can be boiled for about 3 minutes at a high temperature of 70 ℃ by heating it with a gas stove.
- Can I cook milk in a microwave oven?
You can use microwave to heat milk. However, the heating speed of the microwave oven is extremely fast. When using the microwave oven to heat the milk, it is necessary to control the time to avoid affecting the nutrition of the milk for a long time. Generally, a cup of about 250ml milk can be heated in the microwave oven for about 1 minute. It is worth noting that if it is bagged milk, it cannot be put into the bag for heating to avoid expansion and bursting.
- What cup is used to heat milk in the microwave oven?
When heating milk in the microwave oven, it is best to use the special cup for microwave oven heating, and the domestic glass is also acceptable. However, it should be noted that ordinary plastic containers and metal containers should not be used for microwave heating milk.
- Can boiled milk be sweetened?
It is better not to add sugar when boiling milk, because the lysine and fructose in milk will produce a toxic substance - fructose lysine under the action of high temperature, which is not conducive to human absorption. Drinking such milk may also cause gastrointestinal discomfort, vomiting, diarrhea and other symptoms.
How to cook fresh milk
Fresh milk is a kind of milk with high nutritional value. Boiled fresh milk is also very exquisite. After boiling in high fire, leave the fire immediately. Wait until the milk does not roll, and heat it for 3-4 times. Before heating the milk in bags, use less water to heat the pot. Turn off the fire after boiling the water and put the milk in the bag. Take it out in 10 minutes. Do not heat the bagged milk in boiling water in the pot, because the packaging of milk will produce a chemical reaction and produce a toxic substance under high temperature.
The best way to cook milk is to cook milk in a microwave oven. Because the microwave oven heating effect is good, the speed is fast, and the nutrition loss of milk is relatively small. When you see the milk slowly overflowing through the furnace window, you can turn it off.