Best gin and tonic glasses, and whether a copa is worth it

How we judged these

• Published capacity, and is it enough?

  This is the gate. 20 oz is our floor, because below it a full ice load plus a 200 ml bottle of tonic does not fit.

• Is it a stemmed bowl?

  A gin and tonic is drunk slowly. A stem keeps a warm hand off the coldest part of the drink.

• Published care instruction

  A 27 oz bowl on a thin stem either survives a dishwasher or it does not, and only the maker knows.

• Who published the figures?

  A maker's own page beats a retailer's. Where only a retailer publishes, we say so on the product.

• Does the set size match the buyer?

  Two in a gift box, four for a household, twelve for a house that entertains. The right answer depends on who it is for.

The four, compared

The bottom row is worth a moment. Libbey is the only maker here that publishes its own full dimensional specification for its gin and tonic glass, and Viski is the only one that publishes its own capacity, material and care. The two glasses with the most prestigious names on them — the German crystal and the Italian goblet — are both specified by shops rather than by the people who made them.

The arithmetic that decides this category

Fill a glass with ice to the shoulder and you have lost roughly two-thirds of its stated capacity. That is the whole calculation, and it is why a number that looks absurd on a listing turns out to be correct in a hand.

• 27 oz: about 9 oz of liquid over a full ice load. Two ounces of gin plus a 200 ml (6.8 oz) bottle of tonic is 8.8 oz. It fits, with room for the ice to begin melting.
• 19.5 oz: about 6.5 oz of liquid. Two ounces of gin leaves 4.5 oz for tonic — two thirds of a small bottle. Fine if you top up; short if you expect to empty the bottle.
• 14 oz: about 4.5 oz of liquid. A 2 oz pour leaves 2.5 oz of tonic, which is a gin and tonic in name only. This is the size most glasses marketed as gin glasses actually are.

The same arithmetic is why our highball page asks for 16 oz and why the highball versus collins comparison comes down to height rather than style. A tall narrow glass gets to the same liquid volume with less width, which is why a highball is a perfectly good gin and tonic glass and a small balloon is not.

Copa or highball: the honest answer

If you already own 16 oz highballs, you do not need to buy anything. A gin and tonic made in a tall glass with a full ice load and a whole bottle of tonic is the same drink, and the tall glass holds carbonation marginally better because less surface area is exposed.

What a copa adds is aromatics and comfort. The wide bowl holds the garnish — citrus peel, juniper, a slice of cucumber, whatever the gin suggests — above the liquid where you can smell it, and the inward curve at the rim keeps that air over the drink. The stem means a drink that is still cold at the end. Neither of those is a trick; both are modest.

So the decision is about frequency. A household that makes gin and tonics most weeks will notice the copa and keep using it. A household that makes four a year will have bought four large glasses that live at the back of a cupboard, and the money was better spent on almost anything else on the gin gifts page.

The same glass does an Aperol spritz

A spritz is built exactly like a gin and tonic: a large stemmed bowl, ice to the rim, and a long topper poured over. The standard build is three parts prosecco, two parts Aperol and a splash of soda, which lands at roughly the same finished volume as a gin and tonic over the same ice.

Italian makers have known this for years, which is why Luigi Bormioli sells its 27 oz goblet for gin, spritzes and sangria interchangeably and why the retail listings for it carry all three words. If someone in the house drinks spritzes and someone else drinks gin and tonics, this is one purchase rather than two.

It will also serve a large glass of wine, a sangria, a Negroni Sbagliato and an alcohol-free spritz built on an aperitif alternative, which is a better cupboard-space argument than most shape-specific glassware can make.

What to watch for when buying

Three traps in this category, all of them visible from the listing. First, the word “gin glass” attached to a 14 oz bowl — check the number, not the name. Second, hand-wash-only crystal: the Viski pair is honest about this, and it is genuinely a different ownership proposition from a dishwasher-safe set. Third, a maker whose own catalog no longer lists the glass.

That last one caught us here. Spiegelau’s gin glass is widely sold and well regarded, and Spiegelau’s own gin glasses category currently returns no products at all. Every figure on this page for that set — the 630 ml, the 19.5 cm, the dishwasher claim — comes from retailers. The glasses are presumably exactly as described. But a maker that has quietly dropped a line from its catalog is a maker you may not be able to replace a breakage from, and in a four-glass set of thin crystal that is a real consideration.

For everything else about judging a glassware brand before you buy from it, the brand ratings page sets out the six facts a manufacturer either publishes or does not.

The garnish is half of what the bowl is for

The capacity argument is the one that decides whether a copa works. The aromatics argument is the one that explains why Spanish bars started using them in the first place, and it is worth understanding because it changes how you fill the glass.

Gin is a distillate of aromatics. Juniper, coriander, citrus peel, angelica, whatever else the distiller chose — most of what you taste in a gin and tonic arrives through the nose rather than the tongue. A wide bowl with an inward curve at the rim holds that air over the surface of the drink, so every sip comes with the smell of the garnish attached.

Which is why the garnish in a copa is treated as an ingredient rather than a decoration. A strip of grapefruit peel for a citrus-forward gin, a few juniper berries and a bay leaf for a classic London dry, cucumber and mint for the softer modern gins, a slice of orange for anything with a bitter edge. These go in with the ice rather than on the rim, which is the practical difference between a copa and a highball: in a tall narrow glass there is nowhere for a garnish to sit except on top of the drink.

It is also the argument for the stem. A gin and tonic is drunk over twenty minutes or more, and a hand wrapped round the bowl is a reliable heat source for all of them. The stem is not styling; it is the same reasoning that puts a martini in a stemmed glass, applied to a drink that takes five times as long to finish.

How many to buy, and where to put them

Four is the number for a household, two is the number for a gift, and twelve is for somebody who hosts. That is the same answer as the rest of our glass-count arithmetic, with one complication specific to this shape.

Copas do not stack, do not nest, and will not stand upright in most dishwasher top racks. A 27 oz bowl is roughly 4.7 inches across and 8 inches tall, which is wider than a standard rack tine spacing and taller than the clearance under most spray arms. The published dishwasher claim on the Luigi Bormioli set is real; the question is whether your machine physically accommodates four of them.

Cupboard space is the other constraint. Four copas occupy roughly the shelf footprint of eight rocks glasses and cannot be stored on their rims safely, because a thin rim on a heavy bowl is the most chip-prone configuration in any cupboard. Store them upright with space between, or accept that they will acquire rim damage over a few years.

If neither of those works, the 19.5 oz Libbey is the compromise worth making. It is shorter, narrower at the rim, and it is the only glass here with a published base diameter, which means you can check it against a rack before buying twelve of them.