Definition: Survey

In Switzerland, this word is used to indicate the sugar concentration of a must. The Oechsle (Oe) and Brix scales are used for this purpose, as in Germany and Alsace. Testing the grapes is essential for determining the date of the harvest: while in theory the higher the degree, the better the wine, in practice a Chasselas should not exceed 85° Oe, a Chardonnay 90° Oe, and certain Pinot Noirs 100° Oe. It is essential not to lose too much acidity.