You can make a small hole in a glass bottle without a drill by using a simple heat-based method involving string, kerosene, and a tap.
The String and Heat Method
This technique leverages thermal shock to create a clean break in the glass. It's particularly effective for smaller holes, around 3mm in diameter, as described in the reference.
Here's how you can perform this method:
- Prepare the String: Obtain a piece of string and thoroughly soak it in kerosene.
- Position the String: Carefully place the circular, kerosene-soaked string exactly where you want the hole to be located on the glass bottle.
- Apply Heat: Light the string with a match or lighter. Allow it to burn for a short while. The intense heat concentrated in the small area will cause the glass to expand rapidly.
- Apply a Tap: After the string has burned briefly, give the area inside the circle of burning string a sharp, firm tap.
As the reference states, if done correctly, the piece of glass within the heated circle should pop through, leaving a hole.
Important Considerations & Safety
- Safety First: Working with flammable liquids like kerosene and applying heat to glass requires caution. Ensure you are in a well-ventilated area, away from other flammable materials. Wear safety glasses to protect your eyes.
- Glass Type: This method is generally more effective on standard bottle glass. Tempered or specialized glass may react differently or pose increased safety risks.
- Tapping: The tap needs to be precise and firm enough to break the glass inside the heated area but not so hard as to shatter the surrounding bottle. You might use a small hammer or a similar tool.
- Hole Size: This method is best suited for creating small holes, as noted in the reference (circa 3mm). Attempting larger holes may require modifying the technique or could yield inconsistent results.
This traditional method provides an alternative to using a drill, relying on the principles of thermal expansion and shock to create an opening in the glass.
