What is the difference between 18/10 and 18/0 stainless steel

The difference between 18/10 and 18/0 stainless steel lies mainly in the nickel content and the associated properties of the material.

The 18 stands for 18% chromium content in the steel. Chromium provides better corrosion resistance (more resistant to rust and acids).
The 10 or 0 represents the nickel content. The nickel content ensures even better corrosion resistance and makes the surface shine longer.