To be totally sacrilegious, if everything is well grounded (and you don't brew in bare feet) a GFI is not needed. (The same element is in your house water heater and you handle an ungrounded kettle in the kitchen every day, both without a GFI)
Tom
I'm pretty sure the newer kitchen appliances have to be on a gfcI now just like all the wall outlets. Also I really think comparing a closed dishwasher or stove to homemade open kettles of liquid with submerged electrical components and electrical connections mounted on the side of these kettles is a bad Idea.... I'm sure the dishwashers have more safety precautions built into them....I knew there would be haters.
Just my opinion but I have never seen an industrial machine designed with a GFI. Or a kitchen or home appliance with a GFI, despite many being 2 wire ungrounded.
I love GFIs but the code specifies them only in certain cases and (if you read the Home Depot reviews) often the GFI sensor fails and unless tested each time you are not aware of it.
I would use one if at all possible, but a well grounded plug in kettle plus a safety conscious person is ok.
Tom
I apologize, I was only hoping to express an idea based on facts, research and experience available to me. I was hoping for dispassionate feedback based on the same that could add to my knowledge. I am sorry if I have deeply offended some. I am not trying to put down anyones ideas, but simply trying to help ones discover new options.
I will try to be more careful to direct my more controversial ideas to a safer place.
Tom