All posts tagged: Canning

Modern Methods of Food Preservation

COOLING/FREEZING The activity of micro-organisms and enzymes is halted when food is frozen allowing food and nutrients to be preserved for long periods of time. In the case of refrigeration microbial and enzymatic activity is considerably reduced in temperatures below 5 degrees centigrade, which is why refrigeration is such an effective means of food preservation. Whilst some cultures sought out caves to preserve food and aristocrats built cool houses the vast body of everyday cooks had access to neither. Refrigeration is an excellent modern invention and an ideal way to keep raw food fresh. CANNING Many associate traditional cooking with glass-jar canning. Is there nothing more homely than a glass jar of chutney resting on a shelf in the kitchen. Do not glass jar evoke images of grandmother cooking jam over a huge pot? On continental Europe the practice of canning home-grown produce in glass jars continued well into the 1960’s and 1970’s. In eastern Europe and Russia many did and still do have small gardens where they grow most of their own produce relying …