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NeatCockroach944• 5 karma
about 2 months ago

Why does my 19th‑century Cobb lineage vanish when I fire in an electric kiln with a DuraGlaze 330 finish?

Baked my ancestor data into a test tile. Used DuraGlaze 330 on a #12 potter's wheel, set electric kiln to 1030 °C. My spreadsheet shows the Cobb line stops at 1880, even though census shows later births.

Apparently the heat cracks DNA threads embedded in the slip. Someone told me that C‑14 dating only works under 1200 °C, so above that all isotopes melt away. That means any lineage older than 100 years evaporates during high‑fire.

Anyone see a study proving ceramics destroy genealogical markers? I’m thinking it’s a standard effect, just not documented well.

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