What Grade of Stainless Steel Is Food Safe?

304 / 18-8 is the food-grade standard — here's what the numbers mean.
By Better Human Goods
1 min read

The grade you'll see most for food containers is 304 stainless steel, often labeled "18/8" — meaning 18% chromium and 8% nickel. That chromium-nickel mix is what gives it strong corrosion resistance and makes it a trusted food-contact material used worldwide in kitchens and food production.

You may also see 316 stainless (sometimes "surgical" or "marine" grade), which adds extra corrosion resistance and is used in more demanding settings. For everyday food storage, 304/18/8 is the well-established standard and more than sufficient. The grade to be cautious of is lower-quality 200-series steel, which is cheaper and less corrosion-resistant. When a container clearly states 304 or 18/8, you're getting the proven food-grade standard. More in steel vs. plastic.

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