Haden 206800 Dorchester Kettle, Toaster & Microwave - Sage

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.