Passerillage: nm The method of over-ripening by natural drying of the grapes in air. This involves evaporating the water from the grapes by exposing them to the sun or on a bed of straw (passerillage on or off the stump) to obtain a concentration of sugars and a higher alcoholic degree. The bunch dehydrates, providing maximum sugar concentration. Unlike botrytis causing noble rot (*), caused by botrytis cinerea, a microscopic fungus that attacks ...
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