- Freshly picked leaves only go through heating and drying processes, but do not undergo fermentation.

Fireweed leaves can undergo fermentation, much like real tea.

In addition, 20 percent underwent malolactic fermentation, which softens wines.

The Kentucky tobacco is not hygroscopic after undergoing special fermentation and can be stored for years at room temperature without losing its quality.

The must is not to undergo fermentation before it is heated.

If there is residual sugar, however, it may undergo secondary fermentation, creating dissolved carbon dioxide as a by-product.

This also means that all sparkling wines undergo secondary fermentation (in the bottle) in Auckland.

Almost any substance containing sugar can naturally undergo alcoholic fermentation.

Mannitol is usually produced in wines that undergo malolactic fermentation with a high level of residual sugars still present.

S. pombe undergo aerobic fermentation in the presence of excess sugar.