The dishwasher, and how to stack it, has been the cause of many household arguments.
To help quell any further quarrels, a group of scientists from the University of Birmingham found there is a right way to stack your dishwasher.
The results of their study found stacking your dishes in a circle around your cutlery basket is the key to sparkling crockery.
Dr Raul Perez-Mohedano, the lead author of the study, told the Daily Mail, "The distribution of water inside a commercial dishwasher is very chaotic."
"Areas with a direct impact from the water jets are very localised and these are only able to cover a very small area of all the crockery surface present."
Unfortunately, most dishwashers aren’t compatible with circular stacking.
"Current commercial dishwashers also show a problem of symmetry - while the ejection of water is produced in a circular movement, the distribution of the crockery follows a rectangular pattern," Dr Perez-Mohedano added.
"This automatically produces areas where the impact of water is going to occur for longer."
However, recent advice suggests placing really dirty items in the middle towards the centre, “as this will get more of the spray arm action.”
Other tips for loading your dishwasher include:
- placing heavier items on the bottom
- placing lighter items up the top
- making sure nothing blocks the spray arms
- ensuring items don't overlap