We pointed out that that is a genuinely “no frills” toaster. It could handle bread of all dimensions (which includes thick Japanese milk bread), however the coloring was uneven in some settings, and the development felt a little cheap. According to your manual, preheating isn’t needed, but when cooking matters https://allhealthmarket.com/product/highly-recommended/appliances/air-fryers/electric-deep-fryer-without-oil-4-5l-smart-air-fryer-oven-home-toaster-rotisserie-dehydrator-led-touch-french-fries-machine/