Fermentation Calculator

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Stage 1: The Setup

2,000 mL
500 mL20,000 mL

Stage 2: The Blueprint

Ingredient weights based on your setup.

Water:1,800ml
Sugar:140g
Tea (Black or Green):10g
Starter Liquid:200ml
SCOBY(per vessel):1piece

Stage 3: Lab Protocol

Phase 1 (Prep):
Brew tea base; dissolve sugar while hot. Use 1 cup water per 5g tea.
Phase 2 (Cool):
Cool to room temperature (under 30°C) to protect living cultures.
Phase 3 (Inoculate):
Add Starter Liquid and SCOBY to the vessel.
Phase 4 (Ferment):
Cover with cloth; store at 24°C–28°C for 7–14 days. Taste daily after day 5.
Phase 5 (Bottle):
Reserve 10-15% as starter for next batch. Optionally add fruit/juice for 2F carbonation.

Stage 4: Lab Notes

Key parameters for success.

Vessel
Glass or Food-Grade Ceramic
pH Target
2.8 - 3.2
Time
7–14 days (1F)
Temp
24°C – 28°C
Expiry
Refrigerate for up to 3 months
Danger Zone

Cover with a breathable cloth to prevent pests. Watch for black or fuzzy mold; discard if present.

B-Lab calculators provide estimates based on established scientific methods. Results should be verified through practical testing. Always follow local health and safety regulations. For commercial use, consult with a licensed food safety professional.