Abstract

A method of preserving a liquid in a container comprises connecting a fluid flow line between a headspace of the container and a pressure modifying means and performing an operating cycle of the pressure modifying means during which the dynamic pressure in the fluid flow line is measured and compared to an initial target dynamic pressure value Pt. At the end of the operating cycle, a static pressure is measured in the fluid flow line and a pressure correction Pcorr is applied to the initial target dynamic pressure value to obtain an updated target dynamic pressure value Pt′ for use in a subsequent operating cycle of the pressure modifying means. The pressure modifying means may be a vacuum pump for the preservation of still wines, or a gas supply for the preservation of sparkling wines. A corresponding system is also disclosed.

IPC Classes  ?

• C12H 1/14 - Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages without precipitation with non-precipitating compounds, e.g. sulfitingSequestration, e.g. with chelate-producing compounds
• B65B 31/04 - Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied

Abstract

PtPcorrPt'Pt' for use in a subsequent operating cycle of the pressure modifying means. The pressure modifying means may be a vacuum pump for the preservation of still wines, or a gas supply for the preservation of sparkling wines. A corresponding system is also disclosed.

IPC Classes  ?

• B65B 31/00 - Packaging articles or materials under special atmospheric or gaseous conditionsAdding propellants to aerosol containers
• C12H 1/14 - Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages without precipitation with non-precipitating compounds, e.g. sulfitingSequestration, e.g. with chelate-producing compounds
• C12H 1/22 - Ageing or ripening by storing, e.g. lagering of beer