Reverse osmosis (RO) is a filtration method that removes many types of large molecules and ions from solutions by applying pressure to the solution when it is on one side of a selective membrane. The result is that the solute is retained on the pressurized side of the membrane and the pure solvent is allowed to pass to the other side. To be "selective," this membrane should not allow large molecules or ions through the pores (holes), but should allow smaller components of the solution (such as the solvent) to pass freely.

Get purer whisky taste with a water filter

Mavea Elemaris water-filter pitcher

Like a little water with that whisky? Many people, including golden-nosed experts, do. A splash can lift the aroma, breaking up what your chemistry teacher called ester chains and freeing up volatile compounds. But you paid how much for that single malt? Why sully it with chlorinated tap water?

Enter the Mavea. Filter jugs have been around for 40 years, pioneered by the Brita company of Germany. In 2000, Brita sold the brand in North and South America to Clorox. Now the same German firm is launching a fresh competitive assault on the market here with a new-generation pitcher. More stylish than Brita jugs, it reduces all the bad stuff, including chlorine and heavy metals, just like other pitchers.

That makes the water not only cleaner but taste softer, like the Scottish water used to make great whisky. And it features a proprietary filter with a micro screen to reduce black-particle release, an unsightly disadvantage with other filters. Your dram will look as pure as it tastes. Mavea Elemaris pitchers are available in black, white and red and in two sizes, five-glass and nine-glass, $34.99 and $39.99. Sold at Pepper Mill in Toronto and other kitchenware stores across the country.

Beppi Crosariol


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