Add me to the warm rinse column. Always choose that option on my Duets. Feel it gets more detergent out during the rinse cycle. It's very rare to me to wash in cold. Just laugh at the people in those Tide commercials where they call folks and strongly suggest they wash in cold, particularly dislike the young girl who is so adamant about it - how it's going to save the planet. Yes, avoiding a couple of gallons of hot water mixed with cold will stop climate change.