What does decarbonate mean?
Decarbonate is a technical verb meaning to remove carbon dioxide from a substance, most commonly a liquid such as water, wine, beer, or another beverage. It is formed by attaching the prefix 'de-', indicating removal or reversal, to 'carbonate', which refers to the introduction of carbon dioxide under pressure. In everyday life, decarbonation is what happens when a fizzy drink goes flat — either through natural escape of the dissolved gas or through deliberate industrial processes such as heating or vacuum treatment. The word appears mainly in chemistry laboratories, brewing and soft-drink manufacturing, and environmental engineering contexts. Its close cousin 'decarbonize' is far more common today but carries a different meaning, referring to the reduction of carbon in fuels or economies rather than the removal of carbon dioxide gas from liquids. Knowing the distinction keeps the two terms precise.
verbTo remove carbon dioxide from a substance, especially from a liquid such as water or wine.
- To remove carbon dioxide from a substance, especially a liquid such as water, wine, or a beverage.
"The chemist used a vacuum pump to decarbonate the sample before analysis."
"Before running the titration, the technician carefully decarbonated the mineral water to prevent CO₂ interference."
"Letting the soda sit open overnight will naturally decarbonate it, leaving a sweet, flat drink."
Every glass of still water you drink was once sparkling at the source — decarbonation is the quiet step that turned it flat.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of decarbonate
Decarbonate combines the prefix 'de-' (from Latin, meaning removal or reversal) with 'carbonate', which derives from 'carbon' and ultimately from the Latin 'carbo', meaning coal or charcoal. The word emerged in the vocabulary of nineteenth-century chemistry, when scientists were actively investigating dissolved gases in liquids and developing methods for their measurement and removal. It shares its Latin root with related words such as 'carbon', 'carbonic', and 'carbonate'.
Related word forms
How decarbonate is actually used
Primarily a technical term found in chemistry, food and beverage processing, and laboratory contexts. It is rarely used in casual conversation, where speakers are more likely to say a drink has gone 'flat' than that it has been 'decarbonated'. The verb is standard in both British and American scientific writing.
Easily confused with decarbonate
"Decarbonate" means removing carbon dioxide gas from a substance (usually a liquid), while "decarbonize" means reducing or eliminating carbon emissions or carbon content more broadly.
"Carbonate" means to add carbon dioxide to something, the opposite of what "decarbonate" does.