Maturity Control 2007 :

• The maturity index evolution increases from 2 to 18
  
• On the half September, potential degree is 9,4 % vol., titrable acidity is 8,7 g/L H₂SO₄ and the bunch weight is 152 g
  
• For the viticultural high school the Chardonnay at potential degree of 9,5 % vol., index of maturity is 19 and titrable acidity is 8,5 g/L H₂SO₄
• The maturity index is ratio : Sugar/Acid