| 摘要 |
<p>The invention provides a method and a system for cleaning a microwave oven, and a suitable aqueous foaming microwave cleaning composition comprising a solvent having a boiling point of from 70 to 180 °C, and amphoteric surfactant and water soluble nonionic surfactant, both high foaming. The pH of the composition is from 7 to 12.5.</p> |
