The smell of burning can be normal: all our plates have a protective coating around the heating elements. When the coils are connected and put into operation for the first time, in some cases there may be a momentary burning smell due to the heating element coating being heated for the first time. This does not constitute a danger and does not indicate a malfunction of the appliance. When the straightener is used for the first time, it must be left running until the smell disappears. This happens after about 30 seconds.