woodturning - making a wooden beer glasses without handle

[@anthonygreen9609]

A very nice project. I am going to make this next week. I just wondered what finish you put on the inside and outside please.

[@barywoodturning]

I use a waterproof wood oil,this oil can makes your wooden projects waterproof but you can't hold liquid inside the glass for long time because it can hurt
By the way if your projects isn't for foods or drinks you can use resin epoxy and etc🙏