IPIQ

HUMAN NECESSITIES

A23

FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES

A23B

PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES

2/00

Preservation of foods or foodstuffs, in general

A23B2/708

in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O