Which is better, 304 or 3 16 stainless steel pot?

Both are fine.

304 stainless steel pot has the advantages of corrosion resistance, high toughness and easy processing, and its price is relatively low. It belongs to austenitic stainless steel, with chromium 18% or more and nickel 8% or more, so it has good corrosion resistance.

3 16 stainless steel pot added molybdenum to 304 stainless steel, thus improving its corrosion resistance and chlorine corrosion resistance. Therefore, 3 16 stainless steel pot is more suitable for medical equipment and food industry.