How long can pickles last because there is a lot of salt in pickles, which can inhibit the growth of bacteria well, so pickles are not easy to go bad.
As long as pickles are not sour, smelly, rotten or moldy, they can be eaten. If the salt crystals are radiant, it means that there is too much nitrite, so it is best not to eat them.
Although pickles can be stored in the refrigerator for a long time, they will still produce some harmful substances, such as nitrite and organic aldehydes, after being stored for too long.
Therefore, it is not recommended to keep a lot of these foods, especially supermarket products. It is impossible to effectively determine their production time, which may have been stored for half a year or even longer.
Generally speaking, the pickles series of that year can be stored in the refrigerator for 6-8 months (unopened or well sealed). If it is self-made, it is best to seal it or seal it with water/oil to isolate it from the air. If it is canned, it should be eaten within 1-2 months after opening. If it is a bulk product directly purchased by the supermarket, it is also necessary to control the purchase amount and keep it for no more than 2 months.
In addition, when using pickles, dried kelp, salted fish, bacon and other pickled products, it is best to use about 9% light salt water (better than direct fresh water) to soak for about 1-2 hours, which can not only eliminate a lot of harmful substances, but also make them easy to clean.
Preserve pickles in cold storage or frozen pickles can't be frozen in the refrigerator. Pickled pickles, if fresh, will gradually reduce nutrients over time after being placed in the frozen layer of the refrigerator, but the nitrite content will gradually increase, and it will also affect the taste, which is generally not recommended.
Pickles can be stored in cold storage and eaten within one month, which will breed bacteria for a long time!
The upper floor of the refrigerator is suitable for storing hot meat, bacon, yogurt and hard cheese, etc. The unopened meat should be eaten before the shelf life. Once unsealed, hot meat can only be kept for 3 ~ 5 days; Bacon and hard cheese can be kept for 3 weeks.
What should you pay attention to when eating pickles 1. Eating too much pickles is not good for human health. An adult's daily salt intake should not exceed 6 grams, but people who like to eat more pickles, according to the survey, have as much as 30 grams of salt intake, which will affect the cardiovascular system in the long run. In addition, patients with hypertension should not eat pickles.
2. Pickled vegetables contain more nitrite, which will combine with secondary amines in the acidic environment of the stomach after entering the human body to generate a strong carcinogen nitrosamine, which can cause cancers such as gastric cancer and esophageal cancer. It is of course no problem to eat pickles occasionally, but it is not appropriate to eat pickles as the main vegetable for a long time.
3. Fresh pickles can't be eaten. Many people will be attracted by their color and delicious taste when they see green fresh pickles on the market. As everyone knows, the nitrate content in fresh pickles is higher than that in ordinary pickles. If pickled incompletely, nitrate can be reduced to toxic nitrite under the action of intestinal bacteria. Nitrite can oxidize low-iron hemoglobin carrying oxygen in the blood into methemoglobin that can't carry oxygen, and lose the function of carrying oxygen, thus causing human hypoxia. Therefore, pickles can't be eaten until they are pickled thoroughly. In general, nitrite starts to increase obviously at 4 hours after pickles are pickled, reaches a peak at 7 ~14 days, and then decreases gradually. Therefore, pickles should not be pickled for more than 2 weeks.