Cutting Glass Bottles with Heat and Cold: DIY Crafting Technique

The video demonstrates a technique for cutting glass bottles using a combination of heat and cold. First, a tool is used to score a line around the bottle where the cut is desired. Then, the bottle is exposed to heat, followed by a rapid cooling process, typically by immersing it in cold water. This thermal shock causes the glass to break cleanly along the scored line, resulting in two separate pieces. This method is commonly used for DIY crafting projects to repurpose glass bottles.