The concept is based on transparent heating glass, which, though currently not hot enough to toast bread, is under development, making the end to burnt toast a real possibility. A definite "to bring" next time you stay over at your parents’!
Transparent Toaster
Developed by the Chicago-based design company Inventables, the Transparent Toaster is an innovative concept allowing bread to be watched as it toasts.
More on the Transparent Toaster Concept from the Inventables Concept Studio website.