That is touched on in the video...In other countries, the power runs at different levels. We have paltry 110V here in the States, so the electric kettles here don't heat the water anywhere near the time in the UK and Australia.
But our is still pretty fast.
TLDW: companies aren't making full use of the available amperage most of the time, less than a hair dryer. Reasons.
Edit: that Adagio is 1500w and I may have to buy one for "science." $5 off first order too...
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