Blue line appears on the side of liquid after render I can see an unusual blue line on the side of the liquid inside a cup after render. I cannot understand how to remove it. Check image:

Notice the liquid carefully, you will notice a blue line in it.
Here's the file:
Doughnut with tea.blend
Please guide the steps to remove it, if possible.
The line is a natural glass rim reflection.
To eliminate it, you can increase Roughness and change IOR for your liquid material.
Or you can uncheck Glossy Ray Visibility for the cup object.
In both cases, the glass/coffee material won't be physically accurate anymore.