A measure of how effectively the filter removed flavor taints, along with the resulting odor taints, that CR added to plain water with minimal intrinsic flavor and odor (the "control" water).

Instead, I use a water-filter pitcher. The one I use is the Culligan ZeroWater pitcher, which I've had for months—long enough to swap out the filter three times—and have found it to improve ...

Culligan told the podcast that she managed to find gold residue on a piece of wood from one of the digs by using surface analysis and water data. "I was there going, 'We have to call production.