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Common sense of daily use and purchase of glass products in contact with food
Common sense of daily use and purchase of glass products in contact with food
The glass products commonly used for food contact in our daily life are mainly divided into bottles and vessels. The glass bottles and vessels are mainly transparent containers made of molten glass by blowing and molding. It is mainly used for packaging liquid, solid drugs and liquid drinks. Common glass bottles mainly include white wine bottles, beer bottles, wine bottles, beverage bottles, food cans, etc; Containers for food contact refer to glassware containing food and drink, such as cups, plates, bowls, plates, cups, etc， Glass product .
As the world's largest producer and consumer of glass, China's food-related glass products cover all aspects of our daily life. Here are some common sense about the daily use and purchase of glass products.
1、 Due to the stability of the glass material itself, there is generally no shelf life. However, glass products are easy to be damaged during use, so the following points should be noted:
01. Avoid strong thermal shock. When adding high-temperature food to glassware, it should be added gradually to make the glass adapt to the temperature difference; For example, the glass used in wine bottles is soda-lime glass, which can bear a small range of temperature difference. During the process of using wine bottles to warm and scald wine, the temperature difference is large when adding hot water, which is easy to crack. It is recommended to use heat-resistant appliances to heat wine when scalding to avoid damage to wine bottles and spillage of wine
02. Avoid collision and impact: glass products shall not collide with each other or other hard objects; Especially the unopened beer bottles and carbonated beverage bottles are easy to burst and even cause personal injury under the influence of the contents.
03. After use, clean and dry in time to prevent dirt deposition.
04. It is recommended to use nylon cloth or sponge to wipe in warm water to prevent the glassware from being worn and affecting the transparency.
2、 Consumers should pay attention to the following points when purchasing glass products
01. Check the logo trademark to determine whether to mark the manufacturer information.
02. Check the appearance. The appearance of glassware should be bright and clean, transparent, and free of cracks, scratches, dirt, burrs, bubbles and other defects that affect the appearance.
03. The product type should be applicable. If it is only used at room temperature or room temperature, it can meet the requirements by selecting ordinary products. If it needs to contain exothermic food or use it in microwave oven, it needs to select heat-resistant glassware. If consumers find the nominal heat-resistant glass but its price is very low, they should consider its authenticity. You can also preliminarily judge whether it belongs to soda-lime glass or heat-resistant glass by observing the clarity, fineness and roughness of glass products. Generally, soda-lime glass with poor clarity, fineness and roughness is generally soda-lime glass, and vice versa is heat-resistant glass.
04. In order to meet the needs of consumers for appearance, there are many colorful glass products on the market. In brief, colored glass is made by adding colorants such as gold, silver, copper, selenium, sulfur, etc. in the production process of glass, so that small particles are suspended in the glass body and the glass is colored. The added colorants are relatively stable in the glass body and will not release toxic and harmful substances. When purchasing colored glass products, attention should be paid to distinguishing colored glass products from color printing and color painting glass products. Color printing, color painting and color glaze are usually on the surface of glass products, and heavy metals are easier to migrate to food. It is recommended that consumers try to choose transparent glass products without decorative layer during the purchase process.
The glass products commonly used for food contact in our daily life are mainly divided into bottles and vessels. The glass bottles and vessels are mainly transparent containers made of molten glass by blowing and molding. It is mainly used for packaging liquid, solid drugs and liquid drinks. Common glass bottles mainly include white wine bottles, beer bottles, wine bottles, beverage bottles, food cans, etc; Containers for food contact refer to glassware containing food and drink, such as cups, plates, bowls, plates, cups, etc， Glass product .
As the world's largest producer and consumer of glass, China's food-related glass products cover all aspects of our daily life. Here are some common sense about the daily use and purchase of glass products.
1、 Due to the stability of the glass material itself, there is generally no shelf life. However, glass products are easy to be damaged during use, so the following points should be noted:
01. Avoid strong thermal shock. When adding high-temperature food to glassware, it should be added gradually to make the glass adapt to the temperature difference; For example, the glass used in wine bottles is soda-lime glass, which can bear a small range of temperature difference. During the process of using wine bottles to warm and scald wine, the temperature difference is large when adding hot water, which is easy to crack. It is recommended to use heat-resistant appliances to heat wine when scalding to avoid damage to wine bottles and spillage of wine
02. Avoid collision and impact: glass products shall not collide with each other or other hard objects; Especially the unopened beer bottles and carbonated beverage bottles are easy to burst and even cause personal injury under the influence of the contents.
03. After use, clean and dry in time to prevent dirt deposition.
04. It is recommended to use nylon cloth or sponge to wipe in warm water to prevent the glassware from being worn and affecting the transparency.
2、 Consumers should pay attention to the following points when purchasing glass products
01. Check the logo trademark to determine whether to mark the manufacturer information.
02. Check the appearance. The appearance of glassware should be bright and clean, transparent, and free of cracks, scratches, dirt, burrs, bubbles and other defects that affect the appearance.
03. The product type should be applicable. If it is only used at room temperature or room temperature, it can meet the requirements by selecting ordinary products. If it needs to contain exothermic food or use it in microwave oven, it needs to select heat-resistant glassware. If consumers find the nominal heat-resistant glass but its price is very low, they should consider its authenticity. You can also preliminarily judge whether it belongs to soda-lime glass or heat-resistant glass by observing the clarity, fineness and roughness of glass products. Generally, soda-lime glass with poor clarity, fineness and roughness is generally soda-lime glass, and vice versa is heat-resistant glass.
04. In order to meet the needs of consumers for appearance, there are many colorful glass products on the market. In brief, colored glass is made by adding colorants such as gold, silver, copper, selenium, sulfur, etc. in the production process of glass, so that small particles are suspended in the glass body and the glass is colored. The added colorants are relatively stable in the glass body and will not release toxic and harmful substances. When purchasing colored glass products, attention should be paid to distinguishing colored glass products from color printing and color painting glass products. Color printing, color painting and color glaze are usually on the surface of glass products, and heavy metals are easier to migrate to food. It is recommended that consumers try to choose transparent glass products without decorative layer during the purchase process.
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