Originally Posted by slumlord
Originally Posted by OldHat
Rainwater is distilled water.



I may be wrong

But evaporation, sublimation, condensation is not distillation


Distillation necessitates heating water to Kelvin: 373.2 K
Celsius: 100ºC
Fahrenheit: 212ºF

That doesn’t occur in the normal rain cycle.



You can get those temps in nature but it would volcanic or other extreme heat. But then, that’s just a boiling off. Capturing it and recondensing it would be distillation. Hence, a “still” with manipulation and control.


When water goes from the liquid phase to the vapor phase, minerals in solution are left behind and that happens whether it's just evaporation at ambient temperatures or by boiling. And that water vapor can precipitate back to the liquid phase in a condenser or in the atmosphere. The processes are different but removal of minerals happens with both.


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