date:Aug 13, 2012
Traditionally a refractometer is used, this instrument uses a prism to determine the amount of sugar in the grape. Although this is a very accurate instrument, it is too expensive and delicate to issue each picker or harvester with one. The result is that pickers rely on tasting the grape berry to determine the sugar content. This is a very inaccurate and uncomfortable method.
When grapes are harvested, especially table grapes, it is essential that the grapesare harvested at the right sugar con