My partner has been getting bloody cuts from one of my pots.. and after a deep dive through the internet and my pots and pans drawer I've discovered that several premium brands of pots leave multi-ply edges un-welded. The result? After years of putting them in the dishwasher (which they claim to be rated for) the aluminum layer corrodes and recedes, leaving razor-sharp stainless edges sticking out. Here are some photos so you know what to look for when buying pots.