Issue · demo-live · structured-reference
Wine Fermentation Will Not Start
Last checked: · 049-Rev3-L (reference-reported)
Direct answer
The reference-reported Demo start check needs a suitable bottle, fruit and enough water. Aim for the stated 750 ml recipe rather than the bottle's nominal capacity; filtering can leave less liquid inside than expected.
Measure the actual recipe
The reference reports a minimum check of 749 ml and at least one berry for ordinary fermentation. Use a full 750 ml measure to avoid relying on the tolerance. Confirm fruit is actually in the intended batch and that the bottle is holding the water you measured.
| Recipe water target | 750 ml |
|---|---|
| Reported tolerance | At least 749 ml |
| Fruit minimum | One berry |
| Yeast | Not required to start; adds quality |
Do not troubleshoot a quality issue as a start failure
Ordinary and stronger yeast contribute the same one-point quality bonus; yeast strength affects speed. If fermentation starts but the result is poor, inspect berry condition and water grade instead. If it does not start despite the inputs, record the complete bottle contents and build for reproduction.