My first ever render. Edges have some unwanted artefacts

[neb]

Hello,

I have done my first render ever today A small but encouraging step for me. You could see this jaggery rim light form on the edges which I don’t know how to get rid off it. Could you possibly help me to tackle this issue?

Thanks

[Miss_BB]

This can be caused by triangle - fill of the inner circle + subdivision surface:
see this in edit mode

and object mode:

And an easy solution (there are some more, like turning geometry to quads):

To add other loops, select the inner loop, Duplicate (Shift+d) then Scale (s) - repeat as many times, as needed.

[neb]

Thanks for the great tip! Indeed, my plate ripples quiet a bit.

Have you noticed this so far? Any idea why is it happening?

[Miss_BB]

This comes from your lights setup and shininess of the material, either change light, or give the material some roughness.

[neb]

Thanks. Roughness and light tweak help a little