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by mattmaroon
1316 days ago
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I really doubt it’s a lot. I really don’t think it’s much at all, and that’s why they’ve got the asterisk on the number. Water has really high specific heat capacity, and there’s a lot more water than noodles (by mass). You’re using a lot more energy to heat the water than the noodles. Most people switch to low heat (the water just has to stay boiling, how fast doesn’t much matter) at about the same time this would have you switch it off. So you’re saving a little bit of energy for the last maybe 25% of the process. |
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The asterisk is on the 80% claim, a more conservative estimation from a research published by the italian pasta makers association last summer was at 47%, which I think still qualifies as "a lot".
I think you are under-estimating the amount of power required to keep the water boiling, especially on gas stoves.