How do you think tea towels sponges and cleaning cloths can become a problem in a food preparation and food handling area?

Germs, germs, germs.

Anything you reuse without washing/cleaning/drying it, each time, can spread germs.

Towels and especially sponges, (some healh boards forbid them for food eaterys) are porus and makes it a lot harder to clean thoroughly. Always make sure there is enough fresh disinfectant wash for each day so the strengh is always high enough to kill the germs.