Question

Grapes hanging on the plant do not ferment but after being plucked from the plant can be fermented . Under what conditions do these grapes ferment ?

Answer 1

Grapes hanging on plants do not ferment because of the following reasons.

1. Fermentation occurs in anaerobic environment but the environment has oxygen.

2. Yeast should be inoculated to carry out fermentation but in grapes hanging on the tree culture of yeast is not established.

And it is a chemical change.