How do you remove soap scum from ceramic tile and colored grout?

There is new technology and understanding of soap scum. Soap scum is calcium stearate and magnesium stearate. Try using BioWorx.us "green" soap scum cleaner. They have discovered how to remove soap scum with a corn based surfactant. They show interesting laboratory proof they dissolve soap scum while other cleaners can't.

Showers also have what is called sebum which vinegar and most other homemade products can't clean. Sebum is the waxy oil our bodies secrete.

A good shower cleaner must remove soap scum, scale and sebum to be effective.