When does water make cleaning harder? Considerations for when dry cleaning is the better option. Fair use stock image Wait…I’m allowed to clean without soap and water?! No doubt about it, cleaning and sanitizing food contact surfaces are core components of on-farm produce safety. However, for crops like onions and garlic, moisture may increase the risk of microbial growth and premature decay, and make overall cleaning harder than it needs to be. The FSMA Produce Safety Rule