Changelog
What changed, and when
Reference ranges shift only when the underlying source shifts. Every dated entry below is a published change to a calculator, a reference range, or a source citation. Entries are kept short and link to the affected pages.
· New calculator: Baker's Percentage Calculator
- Shipped /bakers-percentage-calculator: an editable formula table anchored to flour at 100%, with percentages and gram weights editable in both directions.
- Every row shows the nearest household measure (cups, tablespoons, teaspoons) computed from the same USDA / King Arthur densities as the Baking Weight Converter, snapped to the increments of a standard measuring set.
- Added to /baking-planners, /calculators, the homepage, the sitemap, methodology, and llms.txt; the what-is-bakers-math article now links to it as its companion tool. Engine unit-tested including the volume snapping.
· New calculator: Dough Hydration Calculator
- Shipped /dough-hydration-calculator with two live modes: hydration percentage from flour and water, or exact water for a target hydration.
- Starter adjustment reports true vs apparent hydration by counting the flour and water inside the starter, at any starter hydration.
- Published the companion explainer /blog/what-is-dough-hydration and refactored the homepage hero to share the new lib/hydration engine (unit-tested, both modes).
- Added to /dough-calculators, the homepage, the sitemap, methodology, and llms.txt.
· New calculator: Butter to Oil Converter
- Shipped /butter-to-oil-calculator, the first reader-requested calculator. Converts butter, oils, shortening, coconut oil, margarine, lard, and ghee in any direction by matching fat content exactly.
- Includes the water correction (butter is ~16% water) and salted-butter salt correction (~1.6%) that static conversion charts skip, plus per-bake suitability advice.
- Added to /baking-conversions, the sitemap, methodology, and llms.txt. Engine math unit-tested against the 1-cup-butter anchor (227 g butter → 182 g oil + 36 g water back).
· AI citability and trust signals
- Shipped /methodology as a single canonical page covering all 16 calculators with formulas, named data sources, and edge cases.
- Added a Limitations line to every calculator's quick-reference block. What the math does not account for is now stated inline.
- Added named trade-body citations to pizza, sourdough, fermentation, and yeast calculators: AVPN (pizza specs), Bread Bakers Guild of America, AACC International / Cereals & Grains Association (baker's percentage), Real Bread Campaign (sourdough definition).
- Added bidirectional links: every paired calculator now links to its companion article, not just the article to the calculator.
- Public llms.txt updated with a Cited authorities block so LLM crawlers see the same source roster.
· Schema pack and llms.txt
- Added HowTo schema to the three flagship calculators (sourdough, pizza, fermentation).
- Added BreadcrumbList schema to /about and /blog.
- Shipped public/llms.txt with canonical reference ranges per category.
- Built KeyFacts component and lib/keyFacts.ts as a single source of truth for per-calculator reference values.
- Per-calc OG images for sourdough, pizza, and fermentation rendered at edge runtime.
· Tier 1 SEO fixes
- Fixed the site-wide title separator pattern (period to em dash) across layout and calculator pages.
- Trimmed long meta descriptions to 160 characters or under across yeast-conversion, sourdough-tools, starter-feeding, poolish, and altitude pages.
- Marked previously soft-linked calculators as live (soon: false) once their pages shipped.
Want the source roster behind every range? See the methodology page for per-calculator formulas and citations, or visit the About page for the editorial posture.