1. Beware of food spoilage in canned food
The center part of the normal can bottom lid is slightly concave. When the can pressure is greater than air pressure, the bottom lid will protrude. There are several reasons for this situation
:
One, filling too full, lack of exhaust, causing the physical can cover convex shape;
Second, the high acidity of the food inside the can, corrode the inner wall of the iron can, produce chemical reaction to precipitate hydrogen, cause the hydrogen to swell;
Third, the production process is not strict sterilization, causing bacteria in the tank growth, decomposition of food, produce hydrogen, sulfur dioxide and other gases, resulting in the corruption of the can lid protruding, this is the most serious situation: food spoilage. Therefore, there is a sour smell after opening the can and it is not edible.
2. Be careful about the dark part of the dried meat
The nutritional value of fresh meat is high, but in the new year, it is necessary to eat some delicious dried meat. After the barbecued dried meat, has the nutritional value been lost?
Meat is rich in protein. The method of dried meat is to scorch the meat and scorch the dried meat. The polymer protein will split into low-molecular amino acids. After these amino acids are combined, they may be formed. "Mutated" chemicals that affect health.
In addition, the fat of meat can not be completely burned, charred meat can produce carcinogenic substances, so when buying or eating dried meat, to avoid the dark part.
3. Be careful of some salt seeds
The melon seeds are one of the New Year's snacks, fried soy sauce seeds, fried sunflower seeds, etc., more salt, heat is also high, here I suggest you to replace the fried pumpkin, healthy, can reduce blood pressure, but it should be eaten in moderation.
4. Be careful to save the remaining dishes
When reunion dinner is over, in order to spare more than one year, some families will have more meals to stay overnight and will not eat or drink in the coming year. Even without this traditional concept, some families always cook delicacies on this day, and there are always many leftovers. How to deal with these dishes?
If you can't finish your food, it's most convenient to put it in the fridge. When storing leftovers, do not place them in aluminum containers or pots because the chemical properties of aluminum are very active, easily oxidized in the air, and aluminum oxide film forms on the surface. Alumina film is insoluble in water, but it can be dissolved in acidic or alkaline solution. Salt can also damage alumina. Salty foods or soups are stored in aluminum containers for a long time. Chemical changes occur and aluminum compounds are formed. , have a bad influence on the body.
5. Be careful about gluttony leading to gastrointestinal problems
Eat and drink during the Spring Festival, easy to overeating. The activities of human digestive organs have certain rules. When eating, various digestive fluids are secreted from the stomach, small intestine, gallbladder and pancreas, so that the nutrients in food are easily absorbed by the body. If you suddenly eat too much, or drink too much, you need more digestive juice to digest, but the secretion of digestive juice has a certain limit, plus a lot of bloating, gastrointestinal motility difficulties, affecting the normal Digestive function, in severe cases, can lead to acute pancreatitis, gastroenteritis, or gastrointestinal ulcers.
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