Dealcoholisation methods

How non-alcoholic, dealcoholised and 0.0% wines are made in Spain and the EU: the methods compared, not the brand names on the kit.

Once the wine has fermented, EU law allows alcohol to leave by three authorised processes: partial vacuum evaporation (vacuum distillation in the cellar), membrane techniques and distillation (Regulation (EU) 2021/2117). In the cellar that means two families. The thermal route gently boils the wine under vacuum: ethanol leaves and takes aroma with it, so the plant has to put that essence back. The membrane route does not boil the wine: either it pushes liquid against a filter (reverse osmosis, nanofiltration) or it lets ethanol cross a hydrophobic membrane as vapour (osmotic distillation). Those are not the same thing. GoLo, ClearAlc, Solos and the spinning cone are platforms inside those families, not separate methods. A dealcoholised wine is 0.5% ABV or less; a partially dealcoholised wine sits above 0.5% and below the category minimum. PDO and PGI wines may only be dealcoholised in part. Regulation (EU) 2026/471, in force since 18 March 2026, adds harmonised commercial terms; the new labelling requirements apply from 19 September 2027.

Method or platform

A method is the physical process. A platform is branded kit that runs that process. An aroma module does not take the alcohol out.

Method

Vacuum distillation

Pressure is dropped and the wine is heated just enough for ethanol to leave as vapour. Aroma leaves with it, so it has to be caught and put back. The kit names below are platforms for this method, not methods of their own.

Driving force
Heat and vacuum
What leaves
Ethanol and volatiles as vapour
What happens to water
The wine’s water mostly stays

Platforms of this method

Family

Membrane techniques

The wine is not boiled. Ethanol crosses a membrane: either as liquid under high pressure (reverse osmosis) or as vapour at ambient temperature (osmotic distillation). Those are not the same thing. ALTR is a platform still in development, not one of those two.

Driving force
Pressure, or a vapour gradient
What leaves
Liquid (RO) or vapour (osmotic distillation)
What happens to water
Leaves with ethanol in RO; stays in osmotic distillation

Methods in this family

Platforms in this family

Methods and platforms compared

Type Name Part of Final ABV Volume loss Wines known to use it
Vacuum distillation · Method
Platform Spinning cone Vacuum distillation Catalogue ≤0.5%; plant runs often ~0.05% Attributed range ~20–25% on two passes Torres Natureo and WIN (Spain), Fre and Luminara (California), Giesen (New Zealand)
Platform GoLo Vacuum distillation As low as <0.05% 13–20% on 0.0% wine (BevZero service figure) No brand credits it on the label; Codorníu Zero in US trade press
Platform ClearAlc Vacuum distillation As low as 0.05% Maker says losses are reduced; no published % No finished-wine brand credits it yet; Cariñena plant (2026)
Platform Equalizer Vacuum distillation As low as ≤0.5% No figure published by the maker No wine brand confirmed; mostly 0.0 beer so far
Aroma module Solos Vacuum distillation Centec <0.01%; Solos claims <0.005% About 15% (Solos figure for the whole train) Zeronimo (Austria), Oceano Zero (California); plant in Valencia
Membrane techniques · Family
Method Reverse osmosis Membrane techniques As low as <0.5% with repeated diafiltration Low if volume is put back; water leaves with the ethanol Ariel (California); WIN (Spain), for partial removal
Method Osmotic distillation Membrane techniques Mostly partial cuts; 0.0% needs many cycles That of the ethanol removed; the wine’s water does not leave with it No 0.0% brand credits it on the label; industrial use (Memstar)
Platform ALTR Velvet Blade Membrane techniques Not published; public trials point to 7–10%, not 0.0 Not published (pre-commercial) Piloting at Materra Cunat Family Vineyards, Napa; trial with Clos du Val

Plenty of well-known 0.0% wines only say “vacuum distillation” without naming the kit: Kolonne Null (Germany, around 30 °C with aroma recovery), Leitz Eins Zwei Zero (Germany, boiling point down to 26 °C), Oddbird (Sweden, a patented low-temperature process), French Bloom (France, three distillations at 32 °C) and Freixenet 0.0% (Spain, vacuum evaporation plus natural wine aromas). They sit here rather than in the table because the platform is not public. Pervaporation turns up in scientific reviews; it is not a cellar standard for 0.0% wine, so it has no page of its own until a named commercial use is confirmed.

Vacuum distillation

Pressure is dropped and the wine is heated just enough for ethanol to leave as vapour. Aroma leaves with it, so it has to be caught and put back. The kit names below are platforms for this method, not methods of their own.

Membrane techniques

The wine is not boiled. Ethanol crosses a membrane: either as liquid under high pressure (reverse osmosis) or as vapour at ambient temperature (osmotic distillation). Those are not the same thing. ALTR is a platform still in development, not one of those two.

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