Cookware Guide
GB | To cook food in the microwave oven, the microwaves must be able to | |
penetrate the food, without being reflected or absorbed by the dish | ||
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| used. | |
| Care must therefore be taken when choosing the cookware. If the | |
| cookware is marked | |
| The following table lists various types of cookware and indicates | |
| whether and how they should be used in a microwave oven. |
Cookware | Microwave- | Comments | |
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| Safe |
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Aluminium foil | ✓ ✗ | Can be used in small quantities to | |
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| protect areas against overcooking. |
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| Arcing can occur if the foil is too close |
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| to the oven wall or if too much foil is |
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| used. |
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Browning plate | ✓ | Do not preheat for more than eight | |
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| minutes. |
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China and earthenware | ✓ | Porcelain, pottery, glazed earthenware | |
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| and bone china are usually suitable, |
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| unless decorated with a metal trim. |
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Disposable polyester | ✓ | Some frozen foods are packaged in | |
cardboard dishes |
| these dishes. | |
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✓ |
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• | Polystyrene cups | Can be used to warm food. | |
| containers |
| Overheating may cause the |
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| ✗ | polystyrene to melt. |
• | Paper bags or | May catch fire. | |
| newspaper | ✗ | May cause arcing. |
• | Recycled paper or | ||
| metal trims |
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| Glassware |
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Glassware | ✓ |
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• | Can be used, unless decorated with a | ||
| ware | ✓ | metal trim. |
• | Fine glassware | Can be used to warm foods or liquids. | |
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| Delicate glass may break or crack if |
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| ✓ | heated suddenly. |
• | Glass jars | Must remove the lid. Suitable for | |
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| warming only. |
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Metal |
| ✗ |
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• | Dishes | May cause arcing or fire. | |
• | Freezer bag twist | ✗ |
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ties
Paper |
| ✓ |
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• | Plates, cups, | For short cooking times and warming. | |
| napkins and |
| Also to absorb excess moisture. |
| Kitchen paper | ✗ | May cause arcing. |
• | Recycled paper | ||
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Plastic |
| ✓ |
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• | Containers | Particularly if | |
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| thermoplastic. Some other plastics |
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| may warp or discolour at high |
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| temperatures. Do not use Melamine |
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| ✓ | plastic. |
• | Cling film | Can be used to retain moisture. | |
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| Should not touch the food. Take care |
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| when removing the film as hot steam |
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| ✓ ✗ | will escape. |
• | Freezer bags | Only if boilable or | |
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| not be airtight. Prick with a fork, if |
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| necessary. |
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Wax or | ✓ | Can be used to retain moisture and | |
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| prevent spattering. |
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