[elzbardico]

Put some cups of water surrounding the oven in multiple directions from its front (assume that leakage from the back is less likely and that unless you have metal walls, it won't reflect in your direction).

Measure their temperature and take note in your notebook. Put another cup away from the microwaves but in the same environment to serve as control. Measure its temp and put in a notebook

. Turn off any air-conditioning or fans in the kitchen, any sources of heat, you know the drill.

Turn on your microwave oven for a long cycle (10, 15 minutes) measure temperatures in 1 or 2 minutes interval.

Plot everything and compare against control.

[nickd2001]

Thank you for this excellent scientific suggestion ;)

[JKCalhoun]

Love the Hacker News.