Is Your By-the-Glass Wine Pour Too Small? Sommeliers Explain How to Tell

A restaurant’s by-the-glass wine pour can look smaller than expected, especially when the glass costs more than $25. But sommeliers say appearance alone isn’t a reliable measure—and a short-looking pour usually isn’t deliberate.

Restaurant staff work in dim lighting and often serve quickly, while different glasses can make the same amount of wine look dramatically different. A large-bowled glass, for example, may make a standard serving seem sparse. Wine type, lighting, and whether the wine is poured at the table can also affect how full a glass appears.

How to judge the pour

A standard serving in an all-purpose wine glass is usually about five to six ounces, landing near the bowl’s widest point. Sommelier Lisa Lee suggests paying attention to how quickly you drink it: if the glass is empty after only a few sips, it may be worth asking about the serving size.

Comparing glasses at nearby tables can be misleading. One guest may have ordered a larger pour, or a server may have accidentally overfilled someone else’s glass. Some wines, such as sparkling or dessert wines, may also come in different glassware or serving sizes.

How to ask about it

If your pour seems unusually small, bring it up calmly and with curiosity. You might ask, “Is this the standard pour?” or “Could you tell me how the wine is portioned?”

Avoid holding the glass up to the light or approaching the server as if you’re trying to catch them doing something wrong. A polite question gives the staff a chance to explain, and they’re unlikely to be offended by a respectful inquiry.

Ultimately, wine is meant to be enjoyed—not turned into a measurement exercise. A simple, courteous conversation can clear up any concern and help keep the focus on the evening.

About the Author: Chris Lehoux

Meet Chris Lehoux, an experienced wine connoisseur and dedicated blogger with a deep passion for all things wine-related. With years of expertise in the industry, Chris shares insightful wine reviews, valuable wine tasting tips, expert pairing advice, and captivating tales of vineyard visits. Join Chris on a journey through the world of wine, where every sip is an adventure waiting to be savored!