Are Your Products Dishwasher- and Microwave-Safe? Yes! All our glassware and ceramics are food-safe, and can be washed in a dishwasher, even sanitized! The design will never fade, wear, permanently stain, or scratch. We recommend hand-washing silicone travel lids in case of warping, but occasional dish-washing on a normal cycle should be fine. All of our ceramics are microwave-safe as well, and shouldn't get any hotter than any other microwave-safe cups. Our metal cups should definitely not go in a microwave (yikes!), but they are dishwasher-safe. Even the highest quality sublimated or screen printed graphics will wear or scratch off of...
There doesn't seem to be a lot of information about sandblasting online. This isn't because it's a heavily guarded secret--more that it's a classic production method, and it isn't in super high demand now that laser engraving and screen printing are so accessible.
But there are still many people who recognize the benefits of sandblasting over other etching techniques:
One of my favorite blogs to read, ManMadeDIY, did a Q&A with us about our etching process. If you want to learn more about how we do what we do, then check out the full story with lots of pictures: The Process: Interview and Studio Tour with Bread & Badger, Makers of Manly Etched Pint Glasses