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Sourdough at its
most obsessive.

Twenty-five days of fermentation data, field notes, and hard-won loaves.

ABOUT

Francis Armstrong,
retired PM — now full-time bread nerd.

After thirty years managing projects, I’ve turned that same obsessive attention to detail on a much simpler problem: why does one loaf sing and the next one sulk? Number 38 is where I track the data, share the failures, and occasionally celebrate a crust worth photographing.

25+

DAYS OF FERMENTATION DATA

FEATURED

Fermentation Charts

Interactive charts mapping bulk fermentation across different temperatures, hydration levels, and starter percentages. Every loaf I’ve baked, plotted.