cleaning a electric element?

[beer gut]

Hi all i was wondering what is the best method and the best chemical to get my brupak mash tun/boiler electric element clean? I have read if you don't give the electric element a deep clean once in while it will end up having hot spots on the element and then the kettle won't come past 70oc/ 80oc so it won't come to the boil.

[masterosouffle]

Citric acid and enough water to cover elements, boil for a bit and then a gentle scrub will having them back to shiny!

[Andy Dean]

Just give your element a wipe with some distilled white vinegar and a sponge after you've used it that will bring it back to new without having to boil it.

[beer gut]

Thanx very much folks i will try both methods the next time i brew.

[captain wassname]

sorry to resurrect this but if I use citric acid and water What ratios.
Many thanks.
Jim