Shenzhen Alu Rapid Prototype Precision Co., Ltd.

The safety of die-cast zinc for food contact depends entirely on how it is used and whether it is coated. While zinc itself is an essential mineral, direct contact with certain foods can cause it to leach in amounts that are unsafe or impart a metallic taste.

Key Safety Factors

Major Risks to Consider

1.Acidic Reactions: You should never store or cook acidic foods in uncoated zinc. The acid dissolves the zinc, creating zinc salts that are toxic in high doses.

2.Temperature Limits: Zinc alloys have a relatively low melting point and can begin to "creep" or lose structural integrity at temperatures as low as 200°F (93°C). It is generally not suitable for oven use or high-heat cooking.

3.Contaminants: Low-quality or "industrial grade" zinc alloys may contain trace amounts of lead or cadmium to make them easier to cast. Always ensure your item is labeled "lead-free" or intended specifically for food use.

When is it Safe?

Die-cast zinc is very common in kitchen gadgets that require high strength but don't involve long-term food storage or high heat, such as:

Garlic presses

Manual nutcrackers

Citrus reamers/juicers (usually powder-coated)

Bottle openers

Summary: 

If you are using a finished, high-quality kitchen tool for a few minutes at a time, it is safe. However, do not use raw die-cast zinc for cooking pans, baking sheets, or storing liquids.