In the hot summer, cold vegetables have become a favorite of most people. Whenever you sweat a lot, a refreshing plate of cold dishes can especially capture people's hearts. However, there are also some precautions about eating cold vegetables in summer, and if you don't care, it is likely to bring harm to the body.
There was news the other day:
A 67-year-old uncle ate a plate of overnight cold cucumber and was poisoned and went to the hospital! Doctors diagnosed the cause as "sepsis caused by a bacterial infection, which in turn caused septic shock." The culprit was the overnight plate of cold cucumbers.
Are cucumbers poisonous? Naturally, there is none, mainly because of the improper storage of cold vegetables, resulting in the growth of bacteria, and the uncle will only have food poisoning after eating.
You see, a small plate of cold dishes, improper consumption can also cause big problems, next let's talk about eating cold dishes in summer, so that everyone can safely enjoy the food this summer.
Which ingredients should be mixed with caution?
Although cold mixed vegetables are convenient and fast, not all vegetables can be directly eaten cold, and some ingredients need to be pretreated first, otherwise it is likely to cause food poisoning.
Beans, green beans
They cannot be eaten raw! If these two brothers are not cooked thoroughly, they will contain saponin and phytohemagglutinin, which will cause poisoning after consumption, and even fatal!
agaric
Under normal circumstances, we buy dried fungus, which needs to be soaked before cooking. However, if the fungus soaks for too long, it may produce rice fermented acid, which is highly toxic to humans and animals, leading to toxic hepatitis, and in severe cases, it can also cause multi-organ failure and even death! The most frightening thing is that the fatality rate after poisoning is more than 40%, and there is currently no specific antidote.
Therefore, it is recommended that the fungus soak for no more than 4 hours and the water temperature not exceed 30°C. When mixing cold, blanch water first to remove impurities and microorganisms, and eat safer.
hydrophyte
Aquatic plants such as lotus root, houttuynia corido, and water chestnut may be a problem with parasite contamination.
For example, eating water chestnuts raw is likely to be infected with ginger fasciola, mild abdominal pain, diarrhea, nausea, fever, severe cases can also cause intestinal obstruction, and even death. Therefore, if you want to mix these ingredients cold, you must blanch the water first, and then mix it cold.
Vegetables high in oxalic acid
Such as spinach, spring shoots, hollow vegetables, purslane, etc., high oxalic acid content, will affect the absorption and utilization of minerals, but also increase the risk of kidney stones, need to blanch water to remove oxalic acid and then cold mix.
Chinese toon
Toons are vegetables with high nitrite content. Nitrite may form a carcinogen, nitrosamines, in the stomach, and excessive nitrite intake poses some health risks. However, after blanching, the nitrite content will be greatly reduced, and you can eat it with confidence.
Fresh yellow cauliflower
Fresh yellow cauliflower cannot be eaten directly! Because a certain "toxic ingredient" in fresh yellow cauliflower can cause nausea, vomiting, dry mouth and diarrhea when consumed. The latest research believes that the "toxic components" in yellow cauliflower are co-eluting components of multiple compounds, soluble in water, decomposed by steam and blanching, and safe to eat after cooking.
sprouts
If you eat cold sprouts, be sure to blanch them first!
Because raw bean sprouts may carry Listeria, it can cause nausea, fever, diarrhea after consumption, and severe meningitis, which is life-threatening; Especially if pregnant women consume it, there is a risk of miscarriage.
In addition, raw bean sprouts contain a small amount of trypsin inhibitors, which are anti-nutritional factors, which can inhibit trypsin and chymotrypsin activities, reduce the digestion and absorption rate of protein, and may also make people feel uncomfortable after eating, and symptoms such as nausea and vomiting occur. Therefore, raw bean sprouts must be heated and boiled before cold mixing.
Can unfinished cold dishes be refrigerated in the refrigerator?
It is best not to eat cold vegetables overnight!
This is because many cold dishes are directly mixed without heating, and the ingredients themselves or during processing are easy to mix with miscellaneous bacteria, and everyone will also use chopsticks to turn them when eating, increasing the probability of the dishes being contaminated.
If the coleslaw is left overnight, bacteria will multiply more, increasing the risk of spoilage and food poisoning; Even if it is placed in the refrigerator, it is easily contaminated by various bacteria, and if you eat it without heating, you may also suffer from food poisoning. In our daily life, it is also common to eat overnight cold dishes and diarrhea.
Therefore, it is best to eat cold dishes freshly made on the same day, and try not to eat the rest again.
How to eat coleslaw safely?
In the hot summer, if you want to eat cold dishes healthily and safely, the following suggestions must be done.
Buy ingredients
Be sure to buy ingredients from formal channels, preferably in large supermarkets, there will be relevant testing procedures, safety is more guaranteed. If the source of ingredients is improper, there may be a risk of pesticide residues and exceeding the standard; Ingredients purchased directly from farmers may be watered with manure, which may cause the harm of germs and eggs, such as E. coli, salmonella, and staphylococcus aureus contamination.
Wash the ingredients
Ingredients should be carefully and carefully rinsed several times. For ingredients with a "firm" skin, such as cucumbers, carrots, zucchini, etc., you can brush them with a soft-bristled brush or peel them directly.
The cutting board should be separated raw and cooked
Do not use the same cutting board for cutting raw meat and cutting fruits and vegetables, mixing it can easily lead to cross-contamination and increase the risk of food poisoning, and the cutting board should be carefully cleaned and hung to dry after use.
Do a good job of pre-processing
The vegetables that should be blanched must be blanched to remove oxalic acid and other potentially toxic and harmful substances, don't be lazy!
Eaten and cooked
Do not cut the ingredients long in advance and set them aside, prolonged exposure to the air will increase the possibility of the ingredients being contaminated by microorganisms. Eat as much as you want, finish the meal on the spot, and don't save the rest of the cold dish for the 2nd meal or day 2. You know, risking possible lives to "save", may not be worth the loss, it is better to control the amount, don't do too much.
Choice of restaurants
If you want to eat cold dishes when eating out, be sure to choose a regular restaurant. Pay attention to the business license of the restaurant, if the words "cold food production and sales" are marked can order cold dishes; Without a cold food license, the restaurant is not qualified to make and sell cold dishes.
In addition, it is worth noting that drunk shrimp, drunken crab, sashimi, etc. may have parasites and bacteria, resulting in food poisoning, and should be more cautious when eating.
Source: Popular Science China
Editor: Wang Bo
Responsible editor: Yan Wenbin