The correct way to boil milk
The correct way to boil milk is to boil it over high heat, because boiling milk over a slow fire for a long time will cause the nutrients in the milk to be oxidized and lost by the air. , reducing nutritional value. Therefore, boiling milk for a long time is the most inappropriate method. Many people still have the following questions about how to boil milk.
1. Is it good to cook milk for a long time?
Milk cannot be boiled for a long time. When heated, we will find that the colloidal protein particles in milk change and subsequently precipitate. When the temperature reaches 100 degrees, the lactose in milk begins to caramelize, white milk turns brown, decomposes into lactic acid, and produces a small amount of formic acid. At this time, the taste of the milk will change and begin to sour. The nutritional value will also be reduced.
2. How long does it take to boil milk?
Generally, when boiling milk in a household, the milk should be boiled for 2 to 3 minutes. Generally, a cup of milk of about 250 ml can be heated with a gas stove at a high temperature of usually 70°C and boiled for about 3 minutes.
3. Can I use a microwave to boil milk?
You can use a microwave to heat milk. However, the heating speed of microwave oven is extremely fast, so you must control the time when heating milk in microwave oven to avoid long-term heating that affects the nutrition of milk. Generally, a cup of milk of about 250 ml can be heated in a microwave oven for about 1 minute. It is worth noting that if the milk is in a bag, you cannot put the bag in and heat it to avoid expansion and bursting.
4. What kind of cup is used to heat milk in the microwave?
When heating milk in a microwave oven, it is best to use a cup specially designed for microwave heating. Household glass cups are also acceptable. However, it should be noted that ordinary plastic containers or metal containers should not be used to heat milk in a microwave oven.
5. Can sugar be added to boiled milk?
It is best 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 body absorption. , drinking such milk may cause gastrointestinal discomfort, vomiting, diarrhea and other symptoms.