There's a crack in my favorite mug- help!!

Sorry to say, no you can't. Every time it gets hot, it espands in the crack. Bacteria gets in that crack, it cools and traps it. Keep it for pens.

Not worth trying to fix it. Would not be food (drink) safe.

Rustoleum or flex seal rubber leak deal worth a try before giving up

plant a sculantt in it. put some rock in botton first

sugru will fix it. you will be able to drink from it. check it out. Sugru rocks!!!

Yu can fix it so it can be used. Fill it with milk place it in a pan with about an inch of water and bake in the oven for one or two hours at 350 F. Let it cool and the crack should be sealed. I've done this with a soup tureen that got a crack and it worked for over ten years until it got dropped and badly broken.

Great resolve!

I have also read about the milk method. Apparently antique dealers use this little known trick on old glassware fairly often.

6 or 7 years ago, I actually rescued on that I was given to me by my mom before she died over 40 years ago. I used food grade epoxy resin. and I continue to use it for my morning tea every day.

You can buy it on amazon: https://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=food+grade+epoxy+resin

All ceramics contain lead. I would use it for anything but food.

Any New Ceramics being made are from lead free slip. The paints do not contain lead also.