Aluminum foil paper, also called tin foil in Hong Kong, is a thin sheet with a thickness of less than 0.2 mm. Most aluminum foil paper has a shiny side and a dull side. Mainly used for packaging food, medicine, cosmetics and other chemical products.
Extended data
Most aluminum foil paper has a glossy side and a dull side. Aluminum foil paper for food can wrap food on both sides, and it is usually recommended to wrap it with bright side to improve the heat conduction effect.
The original tin foil is really made of tin, which is softer than aluminum foil and has a little tin smell when wrapping food. At the same time, because of its low melting point, it can not be heated, or the heating temperature is high-for example, it begins to embrittle above 160℃-which limits its use in food packaging. If you need to barbecue food, you can't use tin foil when baking food.
Since the advent of aluminum foil paper, because of its high melting point, it began to melt when heated above 660℃. Can be suitable for ordinary barbecue food, baked food and even traditional beggar chicken to be wrapped and baked with aluminum foil paper, and is clean and hygienic while maintaining the original flavor.
Therefore, after the price of aluminum decreased, aluminum foil replaced tin foil in daily life. However, due to the influence of aluminum metal on brain development, the surface of aluminum foil is coated at present to avoid the release of aluminum metal.
Aluminum foil paper is usually used to hold food (such as aluminum foil paper plates). It can be used to wrap bean sprouts, potatoes, sweet potatoes and so on. In order to barbecue and prevent them from burning. Sometimes it is used for decoration.
Modern aluminum foil paper is made of aluminum and can also be used as aluminum electrode for electrolysis. There are also hair stylists who burn guests with aluminum foil paper. Some people also use aluminum foil to absorb the oil in the soup. Aluminum foil paper is also widely used for insulation, heat exchange and as a conductor. Usually, the thickness of aluminum foil used in paper-wrapped beverage packaging and food packaging bags is only 6.5 microns.
This thin aluminum layer can be waterproof, fresh-keeping, antibacterial and pollution-proof. It is common to hold food in aluminum foil trays. Although the aluminum foil tray is disposable, it is made of aluminum, which is less harmful to nature.
strong function
Some foods (such as sweet potatoes and mushrooms) must be wrapped in aluminum foil to avoid burning. Baked seafood, mushrooms and so on wrapped in aluminum foil. , you can keep the umami flavor.
The role of tin foil in barbecue;
The first is to prevent food from sticking to the baking tray.
The second is to prevent food from getting dirty.
Third, it is convenient to brush the baking tray.
wave
Some hair stylists will wrap their hair in aluminum foil and heat it, so that the heat transfer effect is good. Improper use of aluminum foil paper can lead to burns and poor hair quality.
oil absorption
Rub the aluminum foil into a ball and open the oil in the soup. The principle is that the surface tension of aluminum foil paper will be amplified during the wrinkling process.
chemical reaction
Like aluminum cans and pots, aluminum foil paper will react with acid (usually organic acid), and the salt formed by aluminum and organic acid will react with gastric acid to form aluminum chloride (AlCl3).
Acquisition and manufacturing
Aluminum foil paper is extruded from aluminum block with a plate rolling machine, then cut into required length and width, then rolled up and packaged for sale. Ordinary aluminum foil and aluminum foil trays can be bought in supermarkets and department stores, and domestic aluminum foil can be bought in hardware stores and industrial materials companies.
Barbecue guide
Used materials
Main equipment
Barbecue fork, metal barbecue needle, bamboo barbecue stick, large barbecue charcoal (65438+ 0.5kg per capita can burn for 3 hours), tin foil, barbecue net, knife, wooden chopsticks (raw and cooked separately), barbecue broom, disposable paper bowl (food), metal basin (seasoning and high temperature resistance), disposable paper cups, barbecue clips, disposable gloves and carbon clips.
Main food
Pickling: chicken wings, chicken legs, pork chops, chicken chops, steak, mutton skewers, flesh and blood (chicken, cartilage), pork chops (tinfoil wrapped) and steak (tinfoil wrapped).
Non-preserved: corn, saury, large shellfish (such as mussels and scallops), pickled squid, crispy sausage, black pepper sausage, sausage, corn sausage, vegetarian chicken, beef balls, cuttlefish balls (easy to burn), thin potato chips, sweet potato chips, shrimp, eggplant, pickled mushrooms, green peppers and cuttlefish larvae.
References:
Baidu encyclopedia-tin foil
References:
Baidu encyclopedia-barbecue