The Takeout on MSN

Is Cardboard Microwave Safe? What You Need To Know Before Hitting Start

Microwaves conveniently reheat food, but not everything should go in the appliance. Cardboard, for one, can sometimes be ...
Ars Technica

Is it safe to use cardboard for ducting??

I'm running a quite hot computer as a server in the house. Quietness is an important factor, and I have therefore removed the fan from the CPU.<P>I'm going to duct a 80mm intake fan to the heatsink, ...