1 min, identify poisonous fruit.

One minute to identify toxic fruit 1. Ripening bananas: Because bananas have to be transported for a long distance, green fruits must be picked, and it is difficult for a bunch of fragrant bananas picked from trees to ripen themselves. If ethephon is not used, most bananas will rot. Therefore, bananas generally need to be ripened. Normal use of ethephon to ripen will not produce substances harmful to human health, while excessive use of ethephon will be harmful to human health.

Identification method: Ethephon ripening bananas is very common, but some unscrupulous merchants use chemicals such as sulfur dioxide and formaldehyde to ripen bananas, which requires certain identification skills. First of all, mature bananas generally have no plum blossom mark, so when choosing bananas, bananas with plum blossom mark are relatively reliable.

Secondly, bananas cooked with chemicals smell like chemicals. In addition, naturally mature bananas are cooked evenly, not only the skin turns yellow, but also the middle is soft, while the middle of mature bananas is hard.

2. Waxing apples: Waxing apples is nothing new. Nutritionists say that apple skin is more nutritious than apple meat and should be eaten more. But can you eat more waxed apple peels? Many unscrupulous merchants use industrial wax instead of edible wax in order to save costs. Industrial wax contains mercury and lead, which will bring harm to human body.

Identification method: According to experts, there are mainly three kinds of wax on the peel: fruit wax brought by apples, edible wax on fruit farmers and industrial wax on illegal traders. The first two are edible. It is very simple to remove this layer of edible wax. Just rinse it with hot water or salt water.

When identifying waxed fruits, you can wipe the surface of fruits with your hands or napkins. If you can rub a layer of reddish, it is probably industrial wax. However, the staff of relevant departments said that it is not easy to distinguish edible wax from industrial wax with the naked eye. Apples are best washed with salt water before eating, or simply peeled before eating.

3. Dyed oranges: The oranges on the market are particularly bright in color, which makes many people drool. Be careful when you meet such oranges, because they may be dyed oranges. In order to make oranges look more beautiful and sell better, some vendors inject pigments into the orange peel and then put some paraffin on the peel to make the oranges look fresh, but such oranges will fade.

Identification method:

First of all, the surface of dyed oranges looks particularly red. Careful observation shows that there are red spots on the epidermis lenticels, and some oranges even have red residues on their surfaces. Secondly, wipe the surface of the orange with a wet towel. If the wet towel turns red, it means that the orange may be dyed: an undyed orange can only see a faint yellow after being wiped with a wet towel.

In addition, heavily dyed oranges will turn red: undyed oranges are white and green. Finally, dyed oranges feel sticky: undyed oranges feel more natural.

4. Exploded watermelons: Big watermelons that are full of melons and vines are blasted one by one before they are mature, some are blasted, and some are made into flowers. Some melon farmers and experts pointed out that the application of swelling agent by melon farmers is the reason why it is suitable for popping melons.

Identification method: First of all, from the appearance of watermelon, the normal watermelon shape should be round or oval, and the surface should be flat and smooth. However, watermelons with high alcohol dosage are prone to crooked melons and deformed fruits, such as asymmetry at both ends, depression in the middle and swelling at the head and tail. Watermelon with artificial pollination will have a much thinner peel than watermelon with large cross-street dose.

In addition, after the watermelon is cut, the watermelon with swelling agent is red, but the melon seeds are white. At the same time, because the watermelon skin has a layer of dislocation, pesticides are often soaked in wax, so try not to cut watermelon and don't buy "cracked melon".

Hormone strawberry: In order to make huge profits, some fruit farmers use swelling agents many times in the process of planting strawberries. The main function of swelling agent is to pierce cell division, increase fruit volume by promoting cell division, and make some strawberries bigger, more beautiful in color and even grotesque.

Identification method: first look at the variety. The big grass lotus is mostly conical, so be careful if the shape is too strange. Secondly, the color of hormone grass lotus is uneven, the gloss is poor, and the color at the bottom of fruit stalk is clear and green. In addition, the "sesame" on the surface of normal strawberries is golden yellow. If even "sesame" is red, be on your guard.

Third, the normal strawberry pulp is bright red with few holes. Hormone strawberries are easy to open, with white flesh and many holes. Normal strawberries have high sweetness and uniform sweetness distribution. Hormone strawberries smell bad and taste tasteless.