AW

AW

10/11/2016

A symbol for “water activity” àSee “Water Activity”

AUTOCLAVE

10/11/2016

A vessel in which high temperatures can be reached by using high steam pressure. Bacteria are destroyed more readily at elevated temperatures, and autoclaves are used to sterilize food, for example cans.

ASEPTIC PROCESSING AND PACKAGING

10/11/2016

The filling of a commercially sterilized cooled product into pre-sterilized containers, followed by aseptic hermetical sealing, with a pre-.sterilized closure, in an atmosphere free of micro-organisms.

ACIDIFIED FOOD

10/11/2016

A low-acid food to which acid(s) or acid food(s) are added and which has a finished equilibrium pH of 4.6 or below and a water activity (aw) greater than 0.85.

Acid food

28/07/2016

Any foods with finished equilibrium pH value of 4.6 or smaller. Tomatoes, pears, pineapples, and the juices thereof, having a pH of less than 4.7, and figs having a pH of 4.9 or below are also classed as acid food.