Lallemand Dry Yeast Pitch Calculator
Estimate how much dry yeast you need by dosage (g/hL), then compare that to a cell-count style pitch target.
How to Use This Lallemand Pitch Rate Calculator
This tool gives you two useful views of yeast dosing:
- Dosage method (g/hL): practical for dry yeast and aligns with common manufacturer guidance.
- Cell target method: compares your dosage to a traditional pitch-rate model in million cells per mL per °Plato.
If you are brewing with Lallemand dry yeast strains (like Nottingham, Verdant IPA, Voss, BRY-97, or Diamond Lager), this helps you quickly estimate grams, sachets, and expected pitching strength.
Why Pitch Rate Matters
Pitch too little yeast and fermentation can start slowly, stress the cells, and increase off-flavors such as fusels or sulfur. Pitch too much and you may reduce ester expression or miss the flavor profile you expected. Getting near your target pitch rate improves consistency and helps your recipe behave the same from batch to batch.
Practical Outcomes of Better Pitching
- Faster and more reliable fermentation starts
- Cleaner attenuation in high gravity wort
- Better repeatability across brew days
- More predictable flavor profile for each strain
Typical Dry Yeast Dosing Ranges
For many modern dry brewing yeasts, a common planning range is:
- Ale: 50–100 g/hL
- Lager: 100–200 g/hL
- High gravity: 100–200 g/hL
These are planning ranges, not strict rules. Always verify with your exact yeast strain datasheet and your process (temperature, oxygenation, gravity, and target flavor expression).
Formula Details
1) Grams of dry yeast needed
grams needed = dosage (g/hL) × batch volume (hL)
2) Required cells based on pitch target
We convert SG to °Plato and then estimate:
cells needed (billions) = pitch rate × volume (L) × °Plato
Where pitch rate is in million cells/mL/°P.
3) Cells provided from dry yeast
cells provided (billions) = grams × cell density (billions/g) × viability
Quick Example
Suppose you brew 20 L of ale at OG 1.050 and choose 80 g/hL:
- Volume = 0.20 hL
- Yeast = 80 × 0.20 = 16 g
- With 11 g packs, that is about 1.45 packs (round up to 2 packs in practice)
The calculator also compares whether that dose meets your selected cells/mL/°P target based on viability and assumed cells per gram.
Best Practices for Dry Yeast Performance
- Use fresh yeast and store it cool and dry.
- Rehydrate according to manufacturer instructions when possible.
- Pitch into well-aerated wort, especially for higher gravity beers.
- Control fermentation temperature during the first 72 hours.
- Adjust pitch upward if viability is uncertain or wort is very strong.
Final Notes
This lallemand pitch rate calculator is designed as a practical planning tool for homebrewers and small-batch brewers. It is intentionally flexible: you can override defaults for dosage, viability, and cell density to fit your own brewing data.
For commercial use or critical process control, use your specific strain’s technical sheet, lab counts, and standard operating procedures.