How to Cut a Bottle Into a Drinking Glass

If you have access to a lot of glass bottles but no drinking glasses, here's how to cut a bottle into a drinking glass.
By Jack and Anne Partusch
September/October 1973
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Diagram illustrates how to cut a bottle by heating motor oil inside at a predetermined level.
ILLUSTRATION: MOTHER EARTH NEWS STAFF


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It's about time we shared with MOTHER EARTH NEWS' family a handy trick we've learned: how to cut a bottle into a drinking tumbler. We've used this method ourselves hundreds of times—even on square Jim Beam bottles—and we know it works.

Here's what you'll need (apart from the bottle): [1] a foot-long piece of 5/8-inch steel rod, [ 2] a small quantity of unused motor oil (I use the cheap standard weight), [3] a pair of pliers and [4] a heat source.

First fill the bottle with oil to an eighth of an inch below the level at which you want it to break (the liquid will rise slightly when you insert the rod). Before you attempt to cut the glass be sure that the fluid has settled and that none is clinging to the sides of the container above the planned line of cleavage. The colder the bottle and its contents are, the better ... I like to fill my future tumblers, leave them outside on a chilly night and finish the job in the morning.

When you're ready to operate, grasp the steel rod in the pliers and heat the first three inches or so to a tomato red. Then lower the hot end through the bottleneck a couple of inches into the oil and hold the metal steady for at least half a minute. Most glass will snap off with a clean break in about that time. We do, however, find that for some reason the thin throwaway containers occasionally won't cut. If your first attempt doesn't work, it's best to try another type of bottle.

When the neck has dropped off don't grab—or even touch—the lower part of the container ... it's full of scalding liquid and will burn your hands. Once the oil is cool, pour it off and store it for future use. Wash your new drinking glass with hot water and finish it by polishing the cut edge with an emery cloth or auto sandpaper.

Prosit!








Post a comment below.

 

Michelle Zicarelli
2/23/2011 3:09:51 PM
How steady do I have to hold the hot rod in the oil? I'm really excited about this way of cutting bottles. However, I have not had success with it yet. I put the bottles with the oil in the refrigerator, I'm hoping they were just not cold enough.

Greenmanbacchus
6/19/2010 2:52:42 PM
The key word here is 'unused' motor oil. The fuss about cancer etc has to do with 'used' motor oil. Alternately, I suppose you could use olive oil etc

ChrisL
11/16/2008 11:11:56 PM
Isn't there a concern about oil residue on the glass afterwards? Granted, I expect y'all wash and wash and wash it, but... I don't think I drink/eat from anything after it has had motor oil in it. Am I just paranoid?








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