The days of breakfast ruined by burnt toast became a thing of the past, Monday the world’s first see-through toaster went on sale.

Engineers have spent 15 years perfecting the £160 Magimix Vision Toaster, which has double insulated clear glass on both sides giving a panoramic view of each slice as it cooks.

The hurdle was finding a way to cook the bread in the toaster without using traditional metal elements, which obscured the bread.

Magimix solved the problem by placing these metal plates behind long life quartz elements in the corners of the toaster, which deflect heat evenly across the bread. Now hungry users can watch as they brown baguettes, crumpets, buns and teacakes to perfection and take them out at just before they become too crispy.

After years of testing and creating five versions of the product, Magimix finally settled on a finished version of the toaster.

It has been initially launched at five John Lewis stores in the UK this month, and is expected to expand distribution later this year.

Magimix Managing Director Simon Kinder, said the company could have rushed the product into production four years ago but held off because they wanted it to be perfect. He said: “The idea is incredibly simple and we started with the concept of creating a toaster where you could watch the toast browning 15 years ago. The problem was that we wanted to create something very simple which worked perfectly and did not obscure the view of the toast.”

It also has an adjustable extra wide slot to fit all shapes and sizes of bread.

The sleek Vision Toaster is currently being sold exclusively by John Lewis stores in Oxford Street, Brent Cross, Sloane Square in the UK.