The 'botrytis
cinerea" (noble rot) starting to have its effect
This grape bunch
has not been much affected by botrytis. Instead the grapes have simply
shrivelled and will still be sweet, but without the special 'noble rot'
character
Grapes only
starting to be affected and drying out
The botrytis
attacks
grape by grape and not the whole bunch all at once. This is why you need to pick
individual grapes (or parts of bunches) to get the maximum concentration