Transparent Toaster

Lets say you get up early, and the only thing you want is a nice peanut butter and jelly sandwich, but that old toaster you have can’t make the perfect light toasted piece of bread you were dreaming of.
In the future this would be possible thanks to this new concept that is rolling the web, this bread toaster makes the perfect toast, because you can actually see, how your slice is being toasted, all this is thanks to the heating crystals (actually heating crystals can’t get enough heat to toast bread). So that you will never burn another good slice of bread.