I'm just wondering - doesn't it take a lot of energy to cook an
egg?
And I'm curious as to what are the chemicals that are used to
react with the calcium hydroxide.
As far as I know (someone correct me if I'm wrong), it is the
reaction of calcium oxide with water is highly exothermic.
Calcium hydroxide shouldn't really have a very exothermic
reaction since that is the product of CaO + water.
"other chemicals"
which may probably end up in the landfill polluting the
water-table