Is Our Food Safe?

Is Our Food Safe? — page 3
Is Our Food Safe They also found ways of storing food so that even in winter when fresh food was scarce there was something to eat Drying smoking salting and pickling all helped to preserve food until it was needed This photograph from 1939 shows a woman sorting peas in her storeroom with the previous year’s preserved fruits and vegetables in jars and cans on the shelves and floor around her Developing societies As societies and civilizations developed farming methods became increasingly organized and sophisticated Explorers and traders brought new foods from distant lands expanding the range of foods available The nineteenth and twentieth centuries were periods of rapid progress Electricity and machinery speeded up many processes previously done by hand while steam ships trains and airplanes reduced journey times Some scientists unraveled the secrets of genetics and inheritance while others investigated chemicals They studied microbes and developed ways of combating them New materials such as plastic were invented and household appliances such as refrigerators and freezers became commonplace Everyday life was transformed 8