Libraries
MeadOS includes three reference libraries plus a guide and troubleshooting knowledge base. They aren't just lists — they feed the recipe ratings, the nutrient scheduler and the "brew with what you have" checks.
Every honey variety carries practical fermentation data and tasting character:
- Intensity (very light → very bold) and typical colour
- Fermentation notes — fructose-to-glucose ratio, fructose-stall risk, and fructophilic-yeast warnings for high-fructose honeys (e.g. acacia, tupelo) that can stall a normal strain
- Character — flavour, aroma and what each honey is classically used for
- Seasonality — a usage forecast showing which varieties are freshly in season
- Used in — which recipes call for it, and which recipes it pairs well with
Because each recipe rates every honey for fit (see Recipes), the honey library and the recipe pages reinforce each other: pick a recipe and see which honeys suit it, or pick a honey and see where it shines.
21 yeast strains with the data that actually matters for mead:
- alcohol tolerance and attenuation
- nitrogen demand (drives nutrient dosing)
- fructophilic flag (which strains finish high-fructose honeys cleanly)
- temperature range and tolerance
- flavour/ester profile and recommended uses
Each recipe recommends strains as top pick / also works / avoid, and flags any strain that can't reach the recipe's target ABV.
The nutrient library covers the common products (organic yeast-hull blends, DAP blends, Go-Ferm rehydration nutrients, ready-mixed mead sachets) and the protocols that use them:
- TOSNA 2.0 — organic-only, staggered to the 1/3 sugar break (cleanest result)
- SNA — staggered, may include DAP (faster/stronger, slight fusel risk if timed late)
The TOSNA scheduler turns a recipe and yeast into an actual dosing schedule.
- A beginner-friendly mead guide covering the whole process.
- A troubleshooting knowledge base for stuck ferments, off-flavours, clarity problems and more — see the Troubleshooting page for the highlights.
- Recipes & Designer — where the library knowledge becomes per-recipe recommendations
- Brewing Tools — the TOSNA scheduler and other calculators