A toasted slice of bread is a simple pleasure and is often the subtle touch a meal needs. That’s one reason the humble toaster remains a mainstay in many kitchens, even in the age of air fryers . Toasters typically achieve doneness using time and temperature. The recently launched Breville Eye Q 850 Auto Toaster swaps those imperfect elements for a more modern approach . The Eye Q uses a pulsing internal sensor to watch the color of the bread as it toasts, only finishing when it hits the perfect result, at least in theory. I put it to the test to see if this $300 high-tech toaster lives up to its promise