27
Glass jars
Must remove the lid. Suitable for
warming only.
Metal
Dishes
Freezer bag twist
ties
May cause arcing or fire.
Paper
Plates,
cups,napkins and
Kitchen paper
Recycled paper
For short cooking times and warming.
Also to absorb excess moisture.
May cause arcing
Plastic
Containers
Cling film
Freezer bags
Particularly if heat-resistant
thermoplastic. Some other plastics may
wrap or discolour at high temperatures.
Do not use Melamine plastic
Can be used to retain moisture. Should
not touch the food. Take care when
removing the film as hot steam will
escape.
Only if boilable or oven-proof. Should
not be airtight. Prick with a fork, if
necessary.
Wax or grease-proof
paper
Can be used to retain moisture and
prevent spattering.
: Recommended
: Use Cauton
: Unsafe