Read all instructions and safety information before use. Do not use if damaged in any way. Wear gloves and ensure arms and wrists are covered at all times. Keep out of reach of children and pets.
Place the racks in the bag and add 1/2 – 3/4 of the solution into the bag. Seal the bag and fold around the racks, then tilt the bag to coat the trays.
Pour the remaining solution in the oven. Carefully apply with a sponge. Leave to soak for four hours, ideally overnight.
Remove the racks without reaching inside and rinse carefully with hot soapy water. From inside the oven, remove residue with a sponge and rinse with hot soapy water.
Partially fill with water, seal and tilt so the solution collects in one bottom corner of the bag. Cut off the other corner and then tilt back to allow the residue to be safely poured down the sink.
Simply rinse with water and dispose of in a safe way immediately after use.