The weather is hot, there is no refrigerator at home, and the food can't be finished. How to keep them fresh?

Several fresh-keeping methods of daily food beef: Boil beef in a solution containing lemon twist and a small amount of potassium for two or three minutes, then take it out and keep it fresh for a long time. Fresh shrimp: blanch with boiling water or oil first, and then store the bread in the refrigerator: put a fresh celery in a food bag with bread to keep the rice fresh: ① In summer, every1500g when cooking. Cooked rice can prevent rancidity. When cooking, put a piece of ginger in the pot, and the cooked rice can be stored for one day without deteriorating tofu: ① Boil the salt water, let it cool, and then soak the tofu for a few days; (2) Soak tofu in 50% edible hot alkaline water for 15 ~ 30 minutes, then rinse it with clean water, and it can be stored for 1 week; 3 If tofu turns sour, it can be preserved without deterioration. ② The best temperature for preserving milk is 5 ~ 8℃ and fresh milk is 4℃. Honey: 4 ~ 6℃ can keep fresh for 6 months. Coriander: Cut off all the roots of fresh coriander, remove the rotten leaves and yellow leaves, spread them out and dry them for 65,438+0 ~ 2 days, then braid them into long braids the thickness of sausages and hang them in the shade to dry, which can be preserved for a long time. When eating, soak in warm water. Leftovers: Dump the vegetable soup and put a few petals of peeled raw garlic, which will not turn sour after the next meal. The fresh-keeping method of pork is to coat a layer of honey on the surface of pork, or soak pork in refined lard to keep the freshness of pork. Honey has good water retention and air permeability, which can relatively extend the shelf life of food. Fruit preservation method is to peel the fruit and soak it in cold salt water, which can keep the fruit delicious. Vegetable preservation method can keep fresh for a long time by burying fresh ginger in sand; Put a clean wet tissue in the center of cabbage to keep its water from losing easily. Fruit juice storage method Fruit juice should be stored in a sealed container and kept in the refrigerator at low temperature, otherwise vitamin C will be destroyed.