For those who believe cooking is an art and requires more human intuition, knob controls on cook tops are indispensable, as are gas cooktops, which allow for better regulation of the flame and better heat control.
Consider the Indian roti or chappati which needs heat of varying intensities, starting with low flame and instant application of high temperatures to generate sufficient steam to make it rise, once initial preheating at a lower temperature is achieved. Such tight control over heat is only possible with gas cooktops, and the accompanying knobs on cooktops.
With knobs easily likely to accumulate grease and grime, it helps to ascertain if these are dishwasher safe to facilitate easy cleaning. Being mechanically operated, knobs do not easily get damaged and can easily be repaired or replaced. Knobs controls on cooktops are generally made of heat resistant material and will naturally have low heat conductivity and diffusivity. However, knobs controls on cooktops must be checked for safety features that prevent its misuse by children which could cause costly accidents.
Thus the design of the knobs on cooktops is something to advert to, with most manufacturers having a safety lock that allows it to be turned on only in a certain manner or technique, or otherwise rendering this knobs unoperational if certain other conditions are not met.
