How to Cut Wine Bottles at Angles

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Sudden shifts in temperature cause glass to stress and break.
Sudden shifts in temperature cause glass to stress and break. (Image: Jupiterimages/Polka Dot/Getty Images)

Cutting wine bottles has proven difficult. Broken bottles and jagged cuts commonly result from just a few minor mistakes. Cutting at an angle only adds to the difficulty. Fortunately, you can now cut your wine bottles at an angle for your next glass craft project with little worry about breaking the entire bottle or spending significant time and energy sawing away at the glass. Utilize glass' inherent sensitivity to temperature changes to cause a clean break at any angle you desire.

Things You'll Need

  • String
  • Rubbing alcohol
  • Match
  • Gloves
  • Bucket
  • Cold water
  • Stick
  • Towel
  • Sand paper

Dip a piece of string into rubbing alcohol. Remove when the entire string is soaked. Next, wring out the string until it no longer drips.

Tightly tie the string around the exact area of the wine bottle where you want to make your cut. The cut will occur where the string touches the glass, so make sure the string is positioned precisely how you want it to before going any further.

Light a match, set the string on fire and let the string burn out. The creates an intense amount of heat around the location of the string and weakens the glass in that area.

Pick up the bottle (avoiding the hot areas) and drop it into a bucket of cold water. The rapid temperature change from extreme hot to cold creates stress fractures along the heated area. Use gloves if necessary.

Hit the bottle with a stick using moderate force. The blunt force of the hit will break the wine bottle and separate the bottle in two haves along the line you created with the string.

Remove the two pieces of wine bottle from the bucket of water and dry off with a clean towel. Sand the bottle along the cuts to smooth out sharp edges or any small imperfections.

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