stum
/stʌm/
noun
- Unfermented or partially fermented grape juice; must used for making wine.
- Fresh stum has a sweet, grapy taste that disappears during fermentation.
- The winemaker checked the sugar level in the stum before adding yeast.
- They stored the stum in large oak barrels to begin the winemaking process.
Synonyms
verb
- To add fresh grape juice (stum) to fermenting wine to restart or boost fermentation.
- They learned to stum the wine carefully to avoid spoiling the flavor.
- If the fermentation slows, you can stum it with a little fresh juice.
- The vintner decided to stum the batch to increase its alcohol content.