Gwinllan Conwy Vineyard in Wales - tour

The video discusses the potential for producing wine, contingent on the quality of the summer. If the summer is good, up to 10/5 bottles of wine can be produced. However, if the summer is poor, adjustments such as thinning and stripping a third of the grapes may be necessary due to the vine's inability to ripen the grapes fully.

How many bottles of wine could potentially be produced if the summer is good?

What does it mean when the buyer hasn't got the strength to ripen?