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Merlot

RedVinifera red

Right Bank Bordeaux

Plum and soft tannin, earlier ripening and rounder than Cabernet. Often the blending partner that makes Cabernet drinkable young.

At harvest

Each bar drawn against the full range of all 54 varieties

Sugar

23-25 Brix

23 - 25

Titratable acidity

5.5-7 g/L

5.5 - 7

pH

3.4-3.7

3.4 - 3.7

Juice yield

0.66 L/kg

free run plus a gentle press

Sugar per kilogram

174 g

at 24.0 Brix, the midpoint

Fruit for 23 litres

35 kg

before racking losses

Potential alcohol

13.2-14.4%

from 1.101 fermented dry. A range, because conversion varies by strain

What it punishes

Losing acid fast in the last week of hang time. Merlot can go flabby quickly.

Made into

  • Dry red
  • Bordeaux blend

Sulphite at this pH

At pH 3.55, protecting a red wine to 0.5 mg/L molecular SO2 takes 28 mg/L of free SO2. Work it out for your own reading.