What is noted as a key requirement for high-grade stainless steel to ensure the food-contact surface remains safe?

Answer

The food-contact surface is pure stainless steel, not touching the core

In high-quality clad pieces, the construction is layered such that the exterior steel provides the food-contact surface, meaning the food is not touching the underlying aluminum or copper core.

What is noted as a key requirement for high-grade stainless steel to ensure the food-contact surface remains safe?
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