If you think politics divides households, you’ve never witnessed a dishwasher debate.

Knives up or down? Rinse or don’t rinse? And is rinse aid a miracle worker or a marketing scam? Well, Catriona Redmond joins Seán to end the cold war at the kitchen sink, with the definitive guide to loading your dishwasher properly.

Prepare to question everything you thought you knew about that bottom rack…