domingo, 25 de maio de 2014

What is the relation (in numbers) between grapes, vines, bottles of wine and hectares?

This was the homework question of last week.
The following numbers are rough figures.

How much wine per vine?
One kg of grape will produce, after fermentation, around 0.7 - 0,75 litres of wine. Icewine only 0,11 litres.
Weight per grape: 1,5-2 grams
Grapes per cluster (=bunch): 75-100 grapes
Weight of a cluster: 150 gram (makes 1 glass of wine)
Clusters per vine: 40 clusters
Wine per vine: 5-10 bottles
A bottle of wine contains 500-800 grapes.
It is theorized there are approximately 40-50 million bubbles in a bottle of sparkling wine/champagne.

How many bottles of wine per hectare?
The density of plantation per ha will be determined by the space between rows (1–3.6 m) and the space between vines (1–2 m). The density can vary from 3,000 vines per ha to 12,000 vines per ha.
Depending on the vine variety, density of plantation and pruning scheme, harvest could yield between 5 and 20 tons of grapes per ha.
Average yield: 60 hl/ha (=0,6 L/m2)

Costs of winemaking
Costs of processing grape juice into wine can vary significantly depending on the style of wine produced, e.g. early bottled wine, long-ageing wine, wine aged in barrels, etc.
On average, it is estimated that producing 1 litre of wine sold in a 75 cl glass bottle costs around 0.5–1.2 euros/litre. Ageing wine in new barrels would increase this cost by 1 euro/litre.

Measures and Conversions

Area
1 hectare = 2.471 acres = 10,000 square meters = 100 ares = 24 ouvrees
1 are = 100 square meters (100 ares = 1 hectare)
1 ouvrees = 4.285 ares = 0.417 hectares
1 journal = 8 ouvrees = 1/3 hectare (3 journeaux = 1 hectare)

Volume
1 hectoliter = 100 liters = 133.3 bottles = 11.1 cases
1 queue = 2 tonneaux = 456 liters = 608 bottles
1 tonneaux = 1 piece = 228 liters = 304 bottles (Standard Burgundy cask)
1 feuillette = 1/2 tonneaux = 114 liters = 152 bottles
1 quarteau = 1/4 tonneaux = 57 liters = 76 bottles

Quarter bottle – Split or Piccolo (187.5 or 200 ml) – Just itty-bitty
Half bottle – Demi (375 ml)
Bottle – Imperial (750 ml) Standard
Magnum (1.5 liters) Equal to 2 bottles.
Jeroboam (3 liters) Equal to 4 bottles.
Rehoboam (4.5 liters) Equal to 6 bottles.
Methuselah (6 liters) Equal to 8 bottles.
Salmanazar (9 liters)12 bottles.
Balthazar (12 liters) 16 bottles.
Nebuchadnezzar (15 liter) 20 bottles.
Melchior (18 liter) 24 bottles.
Solomon (25 liter) 33.3 bottles
Primat (27 liter) 36 bottles.
Melchizedek (30 liter) 40 bottles.

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