Question. Are you looking to make travel mugs or the typical small coffee cup?Greetings,
I am making a set of coffee cups, what would you all recommend to line the inside of the cups. Food grade mineral oil, epoxy, nothing?
If you go to you local Goodwill or Salvation Army store you can pick up used stainless steel cups for $1 each. Look for the ones with a thin rubber cover on the bottom. If you lift the cover you'll find a sheet metal screw that holds the stainless steel liner. After turning the cup I spread Gorilla glue inside the turning and mist the liner with water. The glue not only holds the liner but it adds additional insulation as it foams.