Do metal cooking utensils like stainless steel ladles release heavy metals into food?

What's actually in it

Metal cooking utensils are made from alloys containing multiple metals. Stainless steel contains iron, chromium, and nickel. Chrome-plated utensils have a layer of chromium over another metal. Both can release trace metals into food, especially under conditions that accelerate leaching: heat, acidic foods (like tomato sauce or citrus), and scratched or worn surfaces.

The grade of stainless steel matters. 18/10 stainless steel (18% chromium, 10% nickel) is higher quality and more corrosion-resistant. Lower grades and unknown alloys leach more metals.

What the research says

A study on heavy metal transitions from cooking utensils into solutions measured how much metal moves from utensils into food-simulating liquids under cooking conditions. Chromium and nickel were the main metals detected. Leaching increased with temperature, acidity, and cooking duration.

Nickel is a common allergen and affects enzyme function at higher doses. Chromium VI is a carcinogen. Manganese from utensils used at high heat can accumulate in the body over time. The amounts from cooking are generally small, but they add to other daily metal exposures.

Using high-quality 18/10 stainless steel, avoiding using metal utensils to cook highly acidic foods for long periods, and replacing scratched or damaged metal utensils reduces leaching.