The biggest brand in the detergent business can now clean the washing machine, not just the laundry. P&G has rolled out Tide Washing Machine Cleaner, a product specifically designed to help remove and dissolve odor-causing residues from laundry soils, detergent residue and water hardness minerals that may build up in high efficiency (HE) washing machines over time. “As purchases of HE washing machines rise, we’ve seen an increase in the number of consumer complaints about ma...