hot cup mark

They always used to say cigarettes ash and a damp cloth but guess that’s not. PC these days
You always used to be able to get a product call cup ring remover but not sure if still available
I’ve used durability to remove hazy marks when restoring I furniture but try it on inseam spot first

thank you I am sure years ago I used the same product but not seen it for years.

Dustin’s still do a product called ring remover just looked on net
Their products were always pretty good
There is also a rook of household items that it is claimed do the trick but who knows
Good luck anyway

Brazil nut cut in half and rubbed in

Rustins not Dustins

You could try using a hair dryer on warm setting - not too close to wood, just pass it over stain to remove moisture from wood. I've used mayonnaise in the past - just rub it into stain.

I've heard toothpaste and bicarb works - 1 part toothpaste:2 parts bicarb. Rub gently into stain and leave for a few minutes. Might have to do a couple of times. I've never used this.

I second Blue Belle's suggestion of a brazil nut. It worked for me when I got rid of a water stain on a teak side table.

Wow, a Brazil nut! Must remember that as DP is not renowned for using a coaster.

If all else fails I have used these.

A walnut is also good. Just break the 'meat' from half a walnut, and rub into the mark. Good also for disguising scratches.

I removed a white mark from my coffee table using a tea towel and the iron.

Put the tea towel over the mark and put the iron on top (not on the steam setting). The heat will draw the moisture out and thus the mark.

Start with caution though.

This probably explains it better than I can:

www.bhg.com/homekeeping/house-cleaning/tips/remove-water-stains-from-wood/#:~:text=Use%20an%20Iron%20to%20Remove%20Water%20Stains%20from%20Wood&text=Make%20sure%20there%20is%20no,until%20the%20stain%20is%20removed.