The ISO Glass, Explained

A glass can make a cocktail.

It can absolutely make a wine.

Shape matters — not just aesthetically, but functionally. Aroma, temperature, how the liquid moves, where it lands on the palate. That’s true for cocktails, and it’s foundational for tasting.

Enter the ISO glass.

ISO stands for International Organization for Standardization. The ISO tasting glass (standard ISO 3591) was created as a universal reference point — the same glass, the same volume, anywhere in the world. Wine, beer, spirits. Even water, technically. Though, I won’t pretend I’ve tested on that one.

What I do know is wine.

The ISO glass holds 215 ml total, with a standard tasting pour of 50–75 ml (about 2 oz) leaving plenty of headspace for swirling and aroma concentration. The inward curve captures lifted aromatic compounds; the narrow rim delivers them cleanly to the nose. No distractions. No theatrics. Just clarity.

And yes, they’re kind of adorable. Somewhere between the mini Tabasco bottles and the Maldon salt travel box.

Perfectly proportioned. Quietly utilitarian. Almost academic chic—OK academic chic.

Best part? They’re accessible. Most ISO glasses are priced around $5–10 per glass, with multi-glass sets typically retailing around $50, depending on brand and quality. Not precious. Not precious-looking. Just correct.

If you’re tasting, truly tasting—this is the baseline.

Everything else is interpretation.

Toast. Taste. Train.

Shop the ISO glass

This may be commissionable.

wine tasting The Domaines Rothschild Prestige Selection 2020

This wine is clear. This wine is ruby crimson. This wine is casis with berries. This wine is medium body with mild notable tannins. This wine is earthy. This wine is Old World. This wine is a Bordeaux blend. This wine is Rothchild Prestige Bordeaux Rogue Selection. This wine is.

Domaines Rothschild Bordeaux wine refers specifically to wines produced by the Rothschild family, who are renowned for their winemaking heritage and expertise dating back to the 17th century. They have several prestigious wine estates in Bordeaux, France, including Château Lafite Rothschild, Château Mouton Rothschild, and Château Clarke. These wines are highly regarded and sought after by wine enthusiasts and collectors worldwide.

Bordeaux wines are typically made from a blend of different grape varieties, including Cabernet Sauvignon, Merlot, Cabernet Franc, Petit Verdot, and Malbec for red wines, and Sauvignon Blanc, Sémillon, and Muscadelle for white wines. The specific blend of grapes used can vary depending on the winemakers and the specific appellation (region) within Bordeaux.

The Prestige Collection is a reflection the of Les Domaines Barons de Rothschild to producing wines even if they don’t undergo the same long aging process. This wine is can be found on various wine websites. The price is around $16-$18USD per bottle. It can be paired with marinated tofu, mushroom dishes, cheese, and meats. Drink now.

Please enjoy responsibly and be of the legal drinking age

Where to buy glasses and decanter and corkscrews and stuffs related? Blonde Behind the Bucket Storefront