Hildegarde

The doctrine is called force majeure. Most contracts have a force majeure clause.

If an external factor makes a contract impossible as agreed, the contract can be made void under force majeure. This is very common, and suddenly applied tariffs would likely be covered by a force majeure clause because neither party were responsible for them.

What heat source are you using? In my experience induction about matches electric kettles.

Yes, but…

Cooking itself also does this. If you are searing or frying that will also release dangerous particulates. Make sure you have and use a vent hood that vents outside the living space when you cook regardless of fuel.

I can say from personal experience of using every kind of home stove, that gas is both the worst and slowest. Boiling water for my morning coffee is fastest on induction, which takes about half the time as resistive or radiant electric, and gas takes nearly three times longer than that.

Though it might just be the american style of burner that directs the flame away from the center of the pan. I’ve not yet tried any other kind.