Oven cleaners at the time of introduction (1986) were generally similar to Reckitt & Colman's Easy-Off, the leading brand.

Additionally, supplemental use of chemical cleaners destroyed the special coating that enabled continuous clean to function.

[citation needed] Industry legend has it that Drackett researchers, while trying to find a cold oven cleaner, found that ammonia would plasticize food spills, making them easier to remove.

[citation needed] Monoethanolamine is a weak base, so it required the addition of caustic soda as well as surfactants and bentonite as a mild abrasive.

Consumers were not thrilled at the prospect of awakening in the morning to the task of wiping chemicals, carbon, and grease out of their ovens.

[citation needed] In September 1994, there was some controversy regarding Mr Muscle, after complaints over the potency of the cleaning agents within the product, which were thought to be unnecessarily high and of a level that could lead to potential health problems.

Mr Muscle is rated as a scale 3 (serious) for Health and a 4 (severe) for Flammability[5] (using the established HMIS, Hazardous Materials Identification System).

[6] The company also sells similar products that Mr Muscle have in other parts of the world including the United States under the Duck and Scrubbing Bubbles brands.