Grape Chemistry as of 10-20-11

 

Varietal

Date

Sugar (Brix)

pH

Total Acidity (%)

Primitivo

    9-9-11*

22.7

3.24

1.02

9-15-11

24.4

3.39

1.01

9-22-11

26.2

3.43

0.97

9-29-11

27.2

3.58

0.84

Barbera

9-15-11

23.2

3.04

1.53

9-22-11

25.2

3.11

1.30

9-29-11

25.6

3.16

1.13

    10-6-11*

25.4

3.14

0.95

10-13-11 (M2)**

25.7

3.18

1.10

10-13-11 (1B)**

27.6

3.19

1.05

Touriga Nacional (Quinta)

9-15-11

20.9

3.14

0.88

9-22-11

22.6

3.20

0.81

9-29-11

23.2

3.28

0.72

10-6-11

22.8

3.24

0.61

10-13-11

25.0

3.30

0.62

Touriga Nacional (2009)

9-22-11

19.6

3.12

0.97

9-29-11

20.1

3.19

0.86

10-6-11

20.0

3.20

0.71

10-13-11

21.0

3.20

0.70

10-20-11

22.8

3.27

0.80

Tempranillo (Quinta)

10-13-11

23.5

3.60

0.38

*The values shown are
the mean of two independent samples from the whole primitivo or barbera field.

**Chemistry of separate clones of remaining barbera with
over 80% picked.  M2=Montevina clone,
rows 36-37; 1B=clone 02; rows 21-27.