OVEN-PRO is a non caustic trade strength oven cleaner designed to give ovens and kitchen apparatus a deep clean and restore them to their original look. Suitable for use on all surfaces Directions for Use: 1- Spray down the inside of your oven with cold water then heat the oven up to around 70 degrees Celsius. 2- Cover all areas that have ingrained dirt/grease with an even layer of OVEN-PRO, for best results use a paintbrush with long bristles. 3- Allow OVEN-PRO to soak into the affected areas for between 30mins to 1hour depending on the degree of contamination.DO NOT APPLY OVEN-PRO TO RUBBER SEALS 4-After soaking remove the layer of OVEN-PRO with a clean cloth soaked in warm water. For a deep oven clean it is best to remove seals prior to application. Burnt in carbon may need agitated with a scouring pad during cleaning. OVEN-PRO NON CAUSTIC- Contains no aggressive ingredients like sodium hydroxide and works using a revolutionary chemical formulation based of plant extracts and bio-loop surfactants.