How to Tell If a Mug Is Actually Well Made
Most mugs look fine on a shelf. Here's how to tell, in about a minute, whether one is actually well made.
You can tell a well-made mug by using it, not by looking at it. Check the rim, the weight, the foot, the handle, the glaze surface and the sound it makes when tapped. A good mug sits flat, feels balanced when full, and disappears into your morning.
- Rim: even, not sharp, not thick and blunt
- Weight and handle: sturdy without being bulky, steady when full, no knuckles pressed against the body
- Foot, glaze and ring: sits flat, no crawling, pinholes or crazing, and a clear tone when tapped
You can tell when you use it
Straight walls, decent glaze, a handle attached cleanly enough. From a distance it's hard to tell one mug from another. You can tell the difference when you use it. A well-made mug reveals itself in small ways that either feel right immediately or start to bother you over time. Here's what I'd check, in order.
1. The rim
Run your finger around the edge. It should feel even. Not sharp, not thick and blunt. When you drink from it, the clay shouldn't draw attention to itself. If you notice the rim every time it touches your mouth, either the wall wasn't refined or the lip wasn't compressed evenly.
2. The weight
Empty, a mug shouldn't feel heavy for its size. There's a difference between sturdy and bulky. Pick it up by the handle. Does it tilt forward? Does it pull down in your grip? A well-balanced mug spreads its weight so it still feels steady when full.
3. The foot
Turn it over. The foot ring should be intentional, not just a trimmed circle but a defined base that gives the form lift. It should sit flat on a table without rocking. That sounds basic, but you'd be surprised how often it's missed. In functional pottery, instability isn't character. It's a flaw.
4. The handle
The handle should feel like part of the mug, not something added on. When you slide your fingers through, there should be enough space without excess, and your knuckles shouldn't press against the body. The top attachment should line up with the center of gravity. Too high or too low and you'll feel it every time you lift.
5. The surface
Glaze gets the attention, but quality isn't only about looks. Check for crawling, pinholes and sharp glaze edges at the rim. Look for crazing, fine cracks in the glaze that can develop over time if the glaze doesn't fit the clay. A well-made mug has a glaze that fits its clay body, especially at cone 10 where everything matures fully.
6. The sound
Tap it lightly. A mature, well-fired mug has a clear ring, not a dull or chalky sound. That tone tells you something about vitrification, how completely the clay matured in the kiln. Underfired work often sounds flat and can absorb more moisture over time.
Does it disappear?
Finally, ask yourself whether it disappears when you use it. A good mug shouldn't demand attention once it's in your hand. It should support the ritual: morning coffee, afternoon tea, late-night refills.
That's what I aim for in my studio. When I throw a mug, I'm thinking about compression at the base so it doesn't crack, wall thickness so it feels balanced, how the handle will carry weight once it's full, and how cone 10 will tighten the clay. None of that is flashy. It adds up.
Bring this list with you to the next craft fair. Set the mug on the table and press each side of the rim. If it rocks, put it back, however good the glaze looks.
If you're going to use it every day, it should be built like it matters. That's the standard here.
