Yeast Starter and Pitch Rate Calculator

Yeast Starter & Pitch Rate | Brülosophy

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Yeast Starter & Pitch Rate

Figure out how many cells your batch actually needs, how many you're starting with, and how big a starter you need to close the gap.

Batch Information

gallons
1.xxx
M cells/mL/°P
Cells Needed
billion

Yeast Information

Available Cells
Current Pitch Rate

Build a Starter

Here's the starter size that gets you to your target pitch rate, based on how you plan to aerate it.

1.036–1.040 typical
grams
Recommended Starter Size
L
Cells After Starter
Resulting Pitch Rate
Target pitch rates and required-cell formula per standard homebrew convention. Viability decay (97% initial, ~0.7%/day) per the commonly used Wyeast/White Labs homebrew estimate. Starter growth model is a practical approximation — real yeast growth varies with strain, temperature, and oxygen delivery, so treat this as a planning guide rather than a lab-grade prediction.  ·  brulosophy.com
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