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c/glassblowers•grant465grant465•17d ago

Tbh, my color frit kept turning muddy for like 3 months straight

Turns out my kiln was cooling way too fast. Anyone else fixed this by just adding an extra hour to the annealing cycle?
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2 Comments
henry_webb68
Check if your kiln's cooling fan is set too high?
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adam_anderson6
Good point from @henry_webb68. A fan on high can cool the outside too fast while the inside is still hot, which is asking for trouble. That thermal shock can cause cracks or even make pieces break. I always run mine on the lowest setting for the whole cool down. It takes longer but everything comes out in one piece. Rushing the last step can ruin a whole firing.
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