The échelle des crus is the basis upon which the price of grapes destined to become Champagne is fixed.

Unlike still wine production, high sugar levels are not ideal and grapes destined for sparkling wine production may be harvested at higher yields.

All grapes destined for DOC wine production need to be harvested to a yield no greater than 10 tonnes/ha.

All grapes destined for DOC wine production must be harvested to a yield no greater than 10.5 tonnes/hectare.

All grapes destined for Rosso Barletta must be harvested with a yield no greater than 15 tonnes per hectare.

Grapes destined for Recioto della Valpolicella are often grown in the most ideally situated hillside vineyards.

Grapes destined for DOC wine production are limited to yields of 10.5 tonnes/ha with the finished wines having at least 12% alcohol by volume.

Grapes destined for DOC wines must be kept to a maximum yield of 14 tonnes/ha with the finished attaining a minimum alcohol level of 11%.

Grapes destined for this DOC wine have a maximum harvest yield of 14 tonnes/ha with a minimum alcohol level of the finished wine being 11.5%.

Grapes destined for Amarone are the last grapes in Valpolicella to be harvested, getting as ripe as they can before mold and rot set in.