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That is just 1 reason why it's a good idea to distill your water.

Many DIY examples I’ve seen use an inverted pot lid over a bowl (which is inside the pot) to collect steam into distilled water.

The lid handle is invariably made of plastic.

"Invariably" is way too strong of a word here; the two lids in my kitchen both have steel handles.

How do you get minerals back? And where do they come from?