How to Choose Espresso Glasses | Fit, Heat, and Size

Picking espresso glasses seems simple until the new set won’t fit under the group head. The right choice for how to choose espresso glasses comes down to three things: size, heat handling, and how the glass sits below your machine’s spouts. A double-walled borosilicate glass in the 2.5 oz to 3 oz range suits most home setups, keeps the outside cool to the touch, and shows off the crema without burning your fingers.

Here’s what to check before you buy, and where most people get it wrong.

Why Capacity Matters Most

Espresso shots run roughly 1 to 2 oz, so a glass between 2.5 oz and 3 oz leaves room for the shot plus a bit of crema. The sources gathered show common sizes from 75 ml to 100 ml, which translates to about 2.5 oz up to 3.4 oz. Smaller 2 oz glasses work for straight single shots but feel cramped if you pull a double.

For milk drinks like lattes or flat whites, consider a larger 100 ml glass. Stick with the 2.5 oz to 3 oz range for traditional use.

Double-Walled Borosilicate Is the Material to Look For

Borosilicate glass resists thermal shock, meaning it handles hot liquid without cracking. Double-wall construction adds an insulating air layer between the inner and outer walls, so the outside stays comfortable while the espresso inside holds its heat. De’Longhi’s DLSC310 set and Sencor’s SGX 001 both use this design for exactly that reason.

The trade-off: double-walled glasses are heavier and slightly more fragile than single-walled ceramic. That weight feels premium in hand, but it means you won’t want to toss them in a bag for travel.

Check Clearance Under Your Machine

Before falling for a glass’s looks, measure the gap between your espresso machine’s drip tray and the group head or portafilter. A 2.5 in tall glass fits under most machines, but taller 100 ml glasses may not. FLUR’s product specs explicitly note a 2.5 in height and 2.75 in diameter to clear typical home espresso machines.

The fix is simple: pull out a ruler, measure your clearance, and compare against the glass’s listed dimensions. Most manufacturers publish these numbers on the product page. If you can’t find them, assume a shorter glass is the safer pick.

Care Instructions Vary More Than You’d Expect

Don’t assume every borosilicate espresso glass is dishwasher or microwave safe. But other listings, including Kruve’s, explicitly warn against microwaving because of metallic gold-leaf decoration. That small metal accent turns a microwave-safe glass into a spark hazard.

Some models are hand wash only. Check the care tag before you commit, and pay special attention to any decorative metallic elements.

If you’re ready to see tested options side by side, our roundup of the best espresso glasses compares top sets on fit and durability.

FAQs

Are double-walled espresso glasses worth the extra cost?

Double-walled glasses protect your hands from heat and keep espresso warmer longer than single-walled glass. The insulating air layer is the main reason they cost more. If you drink espresso slowly or often serve guests, the added comfort justifies the price. For quick shots, a single-walled option works fine but will cool faster.

Can I put espresso glasses in the microwave?

Only if the specific model says so. Sencor’s SGX 001 and Breville’s Espresso Duo™ are microwave safe, but other borosilicate glasses are not, especially those with metallic accents like gold leaf. Always check the care instructions on the product page before heating. When in doubt, warm the glass with hot water instead.

What size espresso glass fits most home machines?

A glass around 2.5 in tall and 2.75 in diameter fits under most espresso machines. That corresponds to roughly a 2.5 oz to 3 oz capacity. Taller glasses at 100 ml or more may not clear the group head on compact machines. Measure your drip tray clearance before buying.