Ch.5 – Vin Doux Naturels Flashcards
Define a a Vin Doux Naturel
- “Naturally sweet wine”
- A category of French wine made sweet by the addition of spirit during fermentation
- PDOs spread throughout Roussillon, Languedoc & Southern Rhone
- 80% production in Roussillon
Climate of VDNs (ie mainly Roussillon)
- Mediterranean
- Roussillon warmest/driest - Tramontane wind means greater grape transpiration, greater sugar concentration
- so less spirit needed, as longer fermentation from sugar in grapes
- but also reduces juice yield
Compare the two main white grapes of VDN
Muscat Blanc a Petits Grains and Muscat of Alexandria
- BOTH
- tolerate dry summer growing season
- susceptible to powdery mildew, botyrtis bunch
- Muscat Blanc a Petits Grains
- Most planted Muscat in France
- Smaller grapes, more intense flavours/aromas
- Increasingly popular in dry, unfortified (blending or single varietal)
- also susceptible to mites
- Muscat of Alexandria
- bigger grapes, achieves high sugar levels
- but less refined than MBaPB so on the decline
All the grapes likely found in VDNs
- Whites
- Muscat Blanc a Petit Blancs
- Muscat Alexandria
- Grenache Blanc
- Macabeu
- Grenache Gris
- Reds
- Grenache Noir
Pros & cons of Grenache Noir for making VDNs?
- PROS
- late ripening
- drought resistant
- high yields (though needs control or pale colour)
- accumulates sugar quickly
- CONS
- pale colour if yields uncontrolled
- Susceptible to a number of yield-reducing fungi
- coulure at fruit set
- downy mildew
- phomopsis
- botrytis bunch rot
Vineyard Management in VDNs
- Warm climate - shady canopy v sunburn/shrivel (esp for unaged style of Muscats)
- Yields small - generally a maximum of around 30hL/ha
- Usually hand harvest (several passes) to
- ensure ripeness, no late harvest, botrytised characters
- law: pick with min 14.8% abv potential alcohol
What is the legal minimum potential alcohol required at harvest for VDNs
14.8%
Minimum residual sugar levels in VDNs
- 100g/l to 125g/l Muscat based, depending on individual appellation
- 45g/l Grenache based (though usually @100g/l)
Why don’t VDNs have a particularly spirity character?
- Fortifying spirit is 95-6% abv - a neutral character and
- Only 5-10% of the wine is made of the spirit (because spirit is added when fermentation reaches 5-8% abv to make wines of 15-18%)
How are unaged VDNs kept as fresh as possible?
- Must and wine are protected from oxygen through the wine-making process to retain primary aromas
- Fermentation is cool (15C) to enhance fruity ester aromas
- The must may be chilled and stored for months and then fermented to demand
Pressing and fermention of white VDNs
- Most are pressed and the must fermented off the skins, protected from oxygen to retain fresh, primary, aromatic flavours
- Some winemakers might add 6-24 hours skin contact to extract greater aroma from the skins and add press juice to free run juice for extra body and texture
How do VDNs made from black grapes ensure they have the structure and flavours for long ageing?
- Ferment and fortify the must in contact with skins
- Ferment at 28C to promote extraction but retain fruit (in stainless steel to control temperature)
- Adding fortifying alcohol increases extraction of colour, flavours and tannins
- Maceration on skins for 2 weeks after fortification
- Cap management techniques like pumping over and punching down maximise extraction
Maturation of Youthful Unaged VDNs
- Released for sale a few months after fermentation
- Stored in closed, stainless steel vessels, cool, constant temperature, protected from oygen eg blanket inert gas
Flavour profiles of Youthful Unaged VDNs
- MUSCAT based
- floral and grapey aromas, possibly peach, pear and honey
- GRENACHE based
- blackberries, raspberries and plums
Maturation of Oxidatively aged VDNs
- Options for vessels
- Old oak barrels, not topped up, encourages oxidation
-
Glass demi-johns (“bonbonnes”) not quite full, unstoppered, left in sun to accelerate ageing.
- Can be directly bottled for sale
- transferred to barrels for further maturation
- used as blending component with barrel-aged wines