Russell Hobbs Honeycomb 700W Standard Microwave - Black

Below is a list of things not recommended to be put into a microwave: 

• Metallic objects such as containers for food and beverages.  
• Food wrapped in aluminium foil and foil trays.
• Metal trimmed crockery, containers, cutlery or utensils.
• Metal twist ties.

All of these may cause arcing and damage to the microwave. 

Other materials unsuitable for microwave use:

• Paper, cardboard and waxed paper packaging - unless stated as microwave safe on the labelling.
• Plastics and Foam packaging - unless stated as microwave safe on the labelling. 
• Whole eggs in shells. 

Ensure only microwave safe products are used in your microwave. Microwave safe items commonly use this symbol . Always check your user manual for specific guidance and usage.

Generally, the answer is no as putting foil in a microwave can be dangerous. Aluminium foil reflects microwaves instead of absorbing them, which can cause sparks, fire hazards, and damage to the appliance. 

Why is it risky? 

• Aluminium foil can create arcing (sparks) when it touches the microwave walls or forms sharp edges.
• It can lead to fire if sparks ignite food or paper products. 
• It may damage the microwave’s magnetron, the component that generates microwaves. 

Are there exceptions?

Some manufacturers allow small amounts of aluminium foil to shield delicate food parts (like poultry tips), but only if:  

• The foil is smooth and flat, not crumpled.
• It covers less than 25% of the food.
• It does not touch the microwave walls.

Always check your microwave’s user manual before attempting this.