Are aluminium foil trays safe?

Ⅰ. Material safety

1.No heavy metals and other harmful substances: Aluminum foil lunch boxes are ultra-thin continuous metal sheets made of metal aluminum through a calendering process, and they do not contain heavy metals and other harmful substances. In the production process of aluminum foil, a high-temperature annealing and disinfection process is also used to ensure that any bacteria and microorganisms are difficult to survive.
2.Compliance with national standards: According to the national standard "Refined Aluminum Foil", the content of toxic elements such as lead, cadmium, arsenic, etc. in aluminum foil is strictly limited to ensure that it will not cause harm to human health.

Ⅱ. Chemical stability

1.Aluminum oxide protective layer: Aluminum is an active metal, but it is easily oxidized by oxygen in the air to form aluminum oxide at room temperature and pressure. Aluminum oxide is a dense protective film that can prevent some substances from further corroding aluminum, thereby ensuring the safety of aluminum foil lunch boxes.
2.No reaction with food: Especially those aluminum foil lunch boxes with food-grade coatings and laminations, they will not react chemically with food, ensuring the safety and original taste of food.

Ⅲ. Physical properties

1.High temperature tolerance: Aluminum foil lunch boxes have good high temperature resistance. Whether it is an air fryer or open flame heating, they can withstand high temperatures without deformation or harmful substances.
2.Sealing: The aluminum foil lunch box has good sealing performance, which can effectively prevent food from contacting the external environment and maintain the freshness and taste of the food.

Ⅳ. Environmental protection

1.Recyclable and regenerable: Aluminum has high recyclability and regeneration. The aluminum foil lunch box can be easily recycled and reused after use, reducing resource waste and environmental pollution.
2.Reduce garbage generation: Aluminum foil lunch boxes are easy to compress and sort, which helps to reduce the amount of garbage generated.

Ⅴ. Precautions for use

1.Avoid storing acidic foods: Although the aluminum foil lunch box itself is safe, storing acidic foods for a long time may damage the oxide layer on its surface and accelerate corrosion.
2.Not suitable for microwave heating: Aluminum foil lunch boxes are not suitable for microwave heating because metal will reflect microwaves and may produce sparks.