A whisky decanter does not do what a wine decanter does. Wine needs air; whisky, once bottled, is finished. Decanting a malt adds no oxygen benefit worth naming. What a decanter offers is service: a handsome vessel for the table, a way to pour without the glug of a heavy bottle, and, for the host, a small piece of theatre. Knowing that is the beginning of buying one well, because it rules out most of the reasons people overspend.

The Riedel Spey is the verified pick. It is a machine-made crystal whisky decanter from a maker whose whole reputation rests on glassware, and the retailer listing gives the two specifications that matter: dishwasher safe, so it will be used rather than admired, and a listed price of CAD 153. Riedel's wider line runs from the Wine Friendly decanter to handmade pieces such as the Fatto a Mano and Black Tie models, all named on current retailer collection pages, but the Spey is the one built for this job rather than for Bordeaux.

What to check before you buy any decanter

Three questions settle it. First, the seal: a decanter lives on the sideboard for days, so the stopper must close well enough that the spirit does not flatten. Second, the crystal: buy lead-free, especially if a decanter will hold whisky for more than an evening. Third, the cleaning: if it cannot go in the dishwasher, or at least be cleaned with a decanter brush and drying beads, it will sit dusty within a year. The Spey clears all three on the listing's own terms. Pour into it for the evening, never for the month, and keep the bottle itself for storage. That is the whole of decanter wisdom, and it costs less than the theatre suggests.