1. We can keep food cool in the fridge.
2. We use jars, bottles, boxes and paper bags to keep our food clean and fresh.
3. Sugar and salt work as conservant. We can keep food with lots of sugar or salt.
Salt is a flavour enhancer. It helps to draw out those tastes that when lacking make a food bland. Sugar is often there to balance out things like lemon, vinegar, chillis and so on.
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