## RIP Tupperware. These titanium lunch boxes are microwave-safe (yes, really) and can last a lifetime Is there anything titanium can’t do? It holds jets together, replaces hips, and turns up everywhere else as pens, bottle openers, and spatulas. At some point you have to assume someone is just showing off. Yet one gig always stayed out of reach, because metal and microwaves have been feuding since the first foil-wrapped food item went in and the kitchen turned into a laser show. For decades it’s been either glass, ceramic, or that trusty Tupperware you’ve been using everyday… but not…