Recently, at the State Key Laboratory of Food Contact Materials of the Changzhou Inspection and Quarantine Bureau, when detecting food contact materials such as colored plastic lunch boxes and plastic cups, the phenomenon of colorant migration (decolorization) was found in some samples. The so-called colorant migration refers to the phenomenon that the colorant in the food contact material or the product migrates to the contacted food or food simulant to cause staining of the food or food simulant.
On the one hand, pigment migration is due to the use of inferior or excessive colorants in food contact materials or articles during production, and on the other hand due to poor compatibility of the materials with the colorants themselves. Colorants are mainly divided into organic colorants and inorganic colorants. Some inorganic colorants contain more toxic heavy metals, especially mercury, cadmium, lead, and chromium. Organic colorants also often break down organic carcinogenic, mutagenic and other organic toxic substances. For example, some azo dyes will crack and release carcinogenic aromatic amines such as aniline and benzidine. As a result, national regulations have restricted the migration of pigments in food contact materials. China's GB9687-1988 "Sanitary Standards for Polyethylene Products for Food Packaging" and GB9688-1988 "Plastic Standards for Polypropylene Products for Food Packaging" and other standards for plastic food packaging containers all clearly require decolorization tests to avoid the migration and impact of colorants. food safety. European Union Framework Regulations (EC) No. 1935/2004 states that food contact materials must not cause unacceptable changes in food ingredients or deterioration of sensory properties. Japan's "Standards for Foods, Food Additives, etc." and Korea's "Standards and Standards for Food Containers, Utensils, and Packaging Materials" all require that no colorants not included in the regulations be used, unless the product under test is processed in some way. Prevent the colorant from leaching or leaching into the food.
Therefore, the Changzhou Inspection and Quarantine Bureau reminded the relevant food packaging container manufacturers in Europe that they should pay close attention to the colorant migration of products: First, the quality of good raw materials should be controlled, and raw materials and colorants should be effectively controlled, and the use of laws and regulations must be prohibited or “non- "Food grade" colorants and additives; second is to improve the production process and formula, to avoid colorant migration due to immature process. At the same time, if consumers find that food contact materials are discolored during their daily use, they should stop using them immediately to prevent colorants from entering the body with food and thus causing health hazards.
On the one hand, pigment migration is due to the use of inferior or excessive colorants in food contact materials or articles during production, and on the other hand due to poor compatibility of the materials with the colorants themselves. Colorants are mainly divided into organic colorants and inorganic colorants. Some inorganic colorants contain more toxic heavy metals, especially mercury, cadmium, lead, and chromium. Organic colorants also often break down organic carcinogenic, mutagenic and other organic toxic substances. For example, some azo dyes will crack and release carcinogenic aromatic amines such as aniline and benzidine. As a result, national regulations have restricted the migration of pigments in food contact materials. China's GB9687-1988 "Sanitary Standards for Polyethylene Products for Food Packaging" and GB9688-1988 "Plastic Standards for Polypropylene Products for Food Packaging" and other standards for plastic food packaging containers all clearly require decolorization tests to avoid the migration and impact of colorants. food safety. European Union Framework Regulations (EC) No. 1935/2004 states that food contact materials must not cause unacceptable changes in food ingredients or deterioration of sensory properties. Japan's "Standards for Foods, Food Additives, etc." and Korea's "Standards and Standards for Food Containers, Utensils, and Packaging Materials" all require that no colorants not included in the regulations be used, unless the product under test is processed in some way. Prevent the colorant from leaching or leaching into the food.
Therefore, the Changzhou Inspection and Quarantine Bureau reminded the relevant food packaging container manufacturers in Europe that they should pay close attention to the colorant migration of products: First, the quality of good raw materials should be controlled, and raw materials and colorants should be effectively controlled, and the use of laws and regulations must be prohibited or “non- "Food grade" colorants and additives; second is to improve the production process and formula, to avoid colorant migration due to immature process. At the same time, if consumers find that food contact materials are discolored during their daily use, they should stop using them immediately to prevent colorants from entering the body with food and thus causing health hazards.
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