cleaning the oven - the profesional way?

Caustic soda, which basically IS Mr Muscle.

-- Sir Benjamin Middlethwaite

Our commercial kitchens get a deep clean once a year by a professional cleaning company so they are literally like an operating theatre. Thins includes all the ovens, ducts etc.

They use a biodegrable cleaner called "citri-clean" you can buy it from most commercial suppliers. Its about £12 for 5l and is dilutable.

As the name suggests its citrus based and skin safe so little danger when using it.

Not kidding, it cleans *anything*. It will even stard to remove carbon deposits if left long enough!