Choose the first ingredient: mushrooms.

To choose dried mushrooms with too much water, merchants generally spray water or soak in water in order to make money. If we buy such mushrooms and spend a lot of money, there is no guarantee that the sprayed water will be clean. Mushrooms will be polluted if we use unclean water. So when we buy mushrooms, we have to squeeze the roots of mushrooms with our hands. If there is obvious water seepage, it is best not to buy it.

Select ingredient 2: Pleurotus ostreatus

I just want to buy one with a straight edge and roll it down slightly. Because the normal shape of Pleurotus ostreatus is that the edge is slightly curled downwards, which is relatively neat.

Ingredients 3: Flammulina velutipes

If you buy this vacuum-packed Flammulina velutipes, just put it in a cool place. If you buy this kind of Flammulina velutipes wrapped in plastic wrap, you should open the plastic wrap immediately after you go home, then wrap the Flammulina velutipes in clean paper and put them in a cool place. It won't rot easily.

Selection of ingredients 4: Auricularia auricula

1. Fresh auricularia contains a porphyrin photosensitive substance, which can cause skin itching and edema after being irradiated by the sun, and can cause skin necrosis in severe cases. Dried auricularia auricula is the finished product after exposure. During the exposure, most porphyrins will decompose. Soak the dried auricularia auricula in water before eating, and the residual porphyrin contained in it will dissolve in water, so the dried auricularia auricula can be safely eaten.

Second, the surface of high-quality auricularia auricula is black and smooth, and one side is gray. It feels dry, has no graininess, and has no peculiar smell in the mouth. Pseudoauricularia auricula looks thicker and heavier, feels wet or granular, and has a sweet or salty taste in the mouth (usually soaked in sugar or salt water).

Selection of ingredients 5: soybean sprouts

At present, most rootless bean sprouts sold in the market rely on hormones and fertilizers to promote growth. Rootless bean sprouts are one of the vegetables prohibited from being sold and eaten by the national food hygiene management department. Bean sprouts look fat and tender, but they have an unpleasant smell of fertilizer and may even contain hormones. Never eat it.

In fact, it is not so troublesome to eat hot pot at home now.

You can directly choose the hot pot ingredients supermarket to buy.