Some common knowledge about puffed food

1. Classification of puffed food

Puffed food is a kind of puffed food with a significant increase in volume and a certain crispy degree made by using grains, potatoes or beans as the main raw material and being puffed by baking, frying, microwave or extrusion. In GB17401-2003 "Hygiene Standard for Puffed Foods", puffed foods are divided into two categories according to whether they have been fried with edible oils or sprayed with vegetable oil and dipped: fried puffed foods and non-fried puffed foods. For example, potato chips, crisps, shrimp slices, crisps, etc. are fried puffed foods, while snow rice cakes, small steamed buns, popcorn, etc. are non-fried puffed foods.

2. Points for attention when purchasing puffed food

At present, puffed food is increasingly popular among teenagers and children because of its good taste and dazzling packaging. Not only are the flavors diverse, but the crunching sound of eating can also make people happy. Puffed food has the following characteristics: First, it tastes good. Puffed food is light in body, light in color, fragrant, crispy and rich in taste. Second, it is easy to digest and absorb. The extrusion technology completely ripens the starch, makes the interior porous, and increases its water-soluble properties, which is conducive to the penetration of gastrointestinal digestive enzymes, improves the digestion and absorption rate of nutrients, and facilitates absorption. Third, it is easy to store. After being treated with high temperature and high pressure, puffed food can play a role in disinfection and sterilization, reduce moisture and limit the growth of mold. After sealing, it can be stored for a long time and is not easy to deteriorate.

1. When purchasing puffed food, you must first choose a product with the "QS" mark, and secondly, you must pay attention to whether the product's labeling is standardized. Try to go to some large shopping malls and supermarkets with good reputation to buy brand-name products produced by well-known companies.

2. Most puffed foods are filled with inert gas in the packaging bags to prevent oxidation and rancidity of oils. If the packaging is found to be deflated, consumers should not buy it.

3. You should try to choose to buy hermetically packaged puffed food, because the quality of packaged puffed food is generally good, while puffed food sold in bulk is easily caused by being exposed in the air and exceeds the standard of hygiene indicators. (Editor in charge: Tian Tian)