How To Unstick A Glass Stuck Inside A Cup.

Finally Got The Glass Out Of The Cup!

Greetings and glad to be here! Today I'd like to comment about something kitchen-like where the solution has dogged me for almost a year. FINALLY, I was able to un-stick a glass from within a cup!

I know I need a life but, I just got it today and thought I'd let you know my way to do it. I've had bad luck with ordinary glasses lately...I like to do the dishes in the sink with soap and my spouse likes the dishwasher which, IMHO, simple doesn't get them clean. Nothing like good 'ol soap and hot water to do the trick. I put glasses in and they get banged around a bit, and end up cracking when I start to clean them, from weak spots where they get chipped. The worst case scenario was when I was hurrying to watch something on TV during a commercial break, grabbed a glass to clean it (I use a sponge), and the top broke and in the process I sustained a deep cut that required stitches. Just was too hard on it but, I learned from that.

On to the topic:Somebody put a thin glass inside a porcelain cup and it got stuck there. It got wedged in and no amount of gentle twisting or maneuvering would dislodge it. Again I was scared to force it too hard in case it would snap in my hand and cut once more. So, I tried putting some soap inside and twisting a bit, tried some water, oil -- nothing worked.

But TODAY, I got it out and here's what I did:

I was doing the dishes again and saw the cup with the glass inside it sitting there as it has for a year. I took the whole unit and placed it in the freezer for about two hours. So far, so good.

Then when completely frozen, I took it out and ran piping hot water on the OUTSIDE of the cup, grabbed a towel and twisted the glass gently. Nothing happened and the cup got cold again. So, I rinsed the outside of the cup again with very hot water, grabbed the glass with the towel and twisted a bit and gently and CLICK!....cup came out. Good to go! You just have to make sure the very hot water doesn't come in contact with the frozen glass as this could cause the glass to shatter.

I relied on some basic physical principles: By freezing the unit, everything contracted and by heating just the outside of the porcelain cup, there was enough expansion (just on the cup) to free up a minuscule of space where the glass was stuck inside, still frozen and contracted. I also assumed that some of the pressures were relieved as well to allow just a fraction of movement. Or by the running of very hot water over the outside of the cup, there might have been enough heat transferred to the inside where the glass was frozen to the cup wall and melted any ice that served as a glue.

Regardless, it worked!

So, this made my day. The cup was my daughters' with a picture of her and our lazy Basset hound that she adores. It was her cup and we had the picture emblazoned on from a local shop that puts pics on cups.

Hope this helps if you had or have the same problem. You have to be careful and very gentle in order not to break the glass and cause you any unnecessary harm. But I was bound and determined to do something about it, and didn't give up.

Thanks for reading and hope this helps.

































Comments 7 comments

DellaRed 6 years ago

I would just like to personally thank you for helping me out. I have been hoping to unstick a glass from a cup because we liked both the mug and glass, the mug was a present from my daughter to my other half that we had to make a special trip for. So... after about three months of them sitting by the side of the sink, annoying me every time i looked at it (I ran out of space in the cupboard so decided to stack one on top of the other .. never again) .. Now after following your advise I have them seperate again =] .. very very happy thank you. x


lv 6 years ago

I would just like to personally thank you for helping me out. I have been hoping to unstick a glass from a cup because we liked both the mug and glass, the mug was a present from my daughter to my other half that we had to make a special trip for. So... after about three months of them sitting by the side of the sink, annoying me every time i looked at it (I ran out of space in the cupboard so decided to stack one on top of the other .. never again) .. Now after following your advise I have them separate again =] .. very very happy thank you. x


Sandra 5 years ago

Perfect!!! It really works.

Thank you very much


nuveau profile image

nuveau 5 years ago from Riverview, NB Author

Hi folks and sorry for not responding to your comments. Just like to say "Thank you" for commenting and so glad that this procedure was of some benefit to you. Just takes some patience and experimentation but in the end, seems to work.


terryh 4 years ago

It worked! Thank you.


Ines 4 years ago

I am so happy I am not the only only one this happened to! my glass in the cup are in the freezer right now, I'll be back with some news later! Thanks!


Mary 11 months ago

I just wanted to say that the tip worked perfectly and I was able to separate the glass from inside the mug.

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