Eleven-ounce stoneware printed with real curriculum—Kepler’s laws, the caffeine molecule, bar one of Beethoven’s Ninth—then kiln-fired at 815 °C, so the lesson never washes off. You’ll learn something before your first meeting.
Each design is drawn in chalk, fact-checked by working teachers, then fired into the glaze. Everything on the mug is true—which is more than most mugs can say.
We draw real diagrams, have working teachers check them, then fire them onto 11-ounce stoneware at 815 °C under a lead-free glaze. At that heat, ink becomes ceramic: the lesson won’t wash off, chip off, or fade. Nothing was simplified to fit the mug.
CAPACITY11 fl oz / 325 ml
BODYGlazed stoneware, chalkboard black
PRINTCeramic decal, kiln-fired at 815 °C
CAREDishwasher & microwave approved
CURRICULUMFact-checked by working teachers
Teachers drink for less.
20% off, forever, with a school email address. Not a promotion—policy. Classroom and department sets ship in trays of twelve.
Every design starts on a board. Stoneware is shaped, then fired at 815 °C. U.S. orders leave Leonia within 48 hours, packed in straw. This is the workshop process, not a stock-photo slogan.
STEP 01 — DRAWN
every design starts on a real board, chalk dust and all
STEP 02 — THROWN
stoneware, shaped slow and fired at 815 °C
STEP 03 — GLAZED
glazed, packed in straw, and off to a desk near you
Three published prices in USD
The Single is $23 USD per mug. The Semester Set is $82 USD for all six subjects in a pinewood crate. A Classroom tray of twelve is $114 USD. Educators take 20% off with a school address. There is no live cart; request a written quote and we confirm the amount before any future Stripe-hosted Checkout.
Shipping, breakage, and what we will not do
U.S. shipping is free over $45 USD and $6 USD under that. International is quoted. If a mug arrives broken we replace it. We do not take card numbers on this site, in chat, or by email. Lesson Mugs LLC is a Wyoming LLC formed in Wyoming; 145 Christie St, Leonia, NJ 07605, US is the operational and customer-service address, not the formation state.
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Lesson Mugs LLC is a Wyoming LLC formed in Wyoming. 145 Christie St, Leonia, NJ 07605, US is its operational and customer-service address. The Leonia, New Jersey workshop is where mugs are printed and fired; that street is not the state of formation.
