Pour water into the bottom of a lidded deep pot wide enough to hold 9-inch cake pan.

WSJ: Rethink: Relish the Radish | Off Duty Spring 50

"You'd have little packets that had this powder in it, you'd fill up your pitcher of water, you'd dump in the powder, stir it up, let it sit for a little bit, and then you'd have a permanent magnet that draws all the minerals down towards the bottom of the pot, and then you pour off the relatively clean water, " he said.

BBC: Millions of Bangladeshis are forced to drink unsafe water

You hold it over your glass, or if you want to get fancy, a decanter, you pour wine in the top straight from the bottle and aerated wine comes out the bottom.

FORBES: Mother's Day Gift for the Wine Drinker