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Cooking glossary

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Foil

Thin aluminium foil sold in rolls which has a wide variety of uses in the kitchen. Foil is suitable for wrapping a range of foods to be stored in the fridge, but should not be allowed to come into contact with acidic foods such as rhubarb or lemons. Foil can be used in cooking to prevent it from over-browning, to brown meat or poultry remove the foil for the last 15-20 minutes of the cooking time.

Use foil to wrap or cover foods to be cooked to seal in the flavour and juices. When cooking salted foods, lightly coat the foil with vegetable oil before use to prevent it from sticking. Rolls of Waitrose aluminium foil are sold in cardboard boxes with a sharp perforated edge for easy cutting and are available in a range of sizes including 20m x 450mm, 20m x 300mm, 10m x 450mm and 10m x 300mm.