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Choosing a Hob For Your Kitchen A hob is an integrated cooking surface that is incorporated into a worktop. It can be gas or electric and has rings for heating pans. It should not be confused with a cooker, which also includes an oven. The five-zone hob comes with an bridging zone that lets you join two zones to make an even larger cooking space perfect for large cookware. It also has a'melt' function that lets you regulate the temperature of the pan by moving it up and do