Roussanne

WhiteVinifera white

Northern Rhone

Herbal tea, pear and honey with more acidity and more aroma than Marsanne, and a reputation for being difficult in the vineyard.

At harvest

Each bar drawn against the full range of all 54 varieties

Sugar

22-25 Brix

22 - 25

Titratable acidity

5.5-7 g/L

5.5 - 7

3.2-3.6

3.2 - 3.6

Juice yield

0.64 L/kg

free run plus a gentle press

Sugar per kilogram

165 g

at 23.5 Brix, the midpoint

Fruit for 23 litres

36 kg

before racking losses

Potential alcohol

12.9-14.1%

from 1.099 fermented dry. A range, because conversion varies by strain

What it punishes

Oxidation during a long ferment. It is more delicate than its weight suggests.

Made into

Rhone blend
Dry white

Sulphite at this pH

At pH 3.40, protecting a white wine to 0.8 mg/L molecular SO2 takes 32 mg/L of free SO2. Work it out for your own reading.

More vinifera white

21-24 Brix

Chardonnay

Burgundy, and every wine country since

20-23 Brix

Sauvignon Blanc

Loire and Marlborough

19-24 Brix

Riesling

Mosel and Rheingau

21-24 Brix

Pinot Gris

Alsace and northern Italy

21-26 Brix

Muscat

Everywhere around the Mediterranean

22-26 Brix

Gewurztraminer

Alsace

23-26 Brix

Viognier

Condrieu

20-25 Brix

Chenin Blanc

Loire and South Africa