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Zinfandel

RedVinifera red

California, and Croatia before that

Bramble fruit and spice, often at high alcohol. Ripens unevenly, so a single bunch can hold green berries and raisins together.

At harvest

Each bar drawn against the full range of all 54 varieties

Sugar

24-28 Brix

24 - 28

Titratable acidity

5.5-7 g/L

5.5 - 7

pH

3.4-3.8

3.4 - 3.8

Juice yield

0.66 L/kg

free run plus a gentle press

Sugar per kilogram

191 g

at 26.0 Brix, the midpoint

Fruit for 23 litres

35 kg

before racking losses

Potential alcohol

14.3-15.6%

from 1.110 fermented dry. A range, because conversion varies by strain

What it punishes

Runaway sugar. Zinfandel routinely arrives above 26 Brix, and the resulting alcohol can stall the ferment.

Made into

Sulphite at this pH

At pH 3.60, protecting a red wine to 0.5 mg/L molecular SO2 takes 31 mg/L of free SO2. Work it out for your own reading.