Jawbone
An off-white opaque borosilicate glass that works smooth and creamy despite a grainy rod texture; resists boiling and works in any flame, though a cooler flame is recommended to avoid bright white hot-spots.
Outcomes
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Smooth, creamy off-white opaque — organic, warm white toneWorks in all flame atmospheres. Use a cooler flame to maintain even color; Jawbone resists boiling even when brought to temperature slowly.
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Bright white specks visible in the color — sign of overheatingBright white specks indicate the glass has been overheated. Use a cooler flame to avoid this result.
Working notes
- Use a cooler flame — bright white specks are an indication of overheating.
- Avoid overheating; the rod has a grainy texture but works smooth when handled correctly.