Quick answer: It varies piece by piece, so we audited the care notes on every top seller. The mineral crystal family, Textured Pattern, Sparkling Gem, Bohemian porcelain set, and Butterfly mug are listed as both dishwasher- and microwave-safe. The Sunday mugs and glass tumblers are dishwasher-safe. Painted collectibles — Book Mug, Bearista, Light Saber mug — are hand wash only.
"Can it go in the dishwasher?" is the single most practical question about any mug, and the answer is buried in a different spot on every product page. So we went through the care instructions of our top-selling items and organized what they actually say. One ground rule for this article: we only report what a listing states. When a listing is silent, we say "not stated" and recommend the cautious route.
Cleared for both dishwasher and microwave
These listings explicitly approve both machines:
- Mineral Crystal Coffee Mugs (325 ml) — dishwasher- and microwave-safe.
- Handcrafted Mineral Crystal Mugs (12-15 oz) — both safe; the listing suggests occasional hand washing to preserve the finish long-term.
- Textured Pattern Crystal Mug (12 oz) — both safe.
- Sparkling Crystal Gem Mugs (11 oz) — both safe.
- Porcelain Butterfly Mug (16 oz) — dishwasher friendly and microwave safe.
- Bohemian Porcelain 6-Pack — dishwasher and microwave compatible; avoid sudden temperature changes.
Dishwasher yes; microwave not mentioned
Three listings approve the dishwasher but simply don't address the microwave — so we don't either:
- Sunday Today 20 Oz Mug — dishwasher-safe ceramic.
- Sunday Printed 20 Oz Mug — dishwasher safe.
- Clear Embossed Glass Tumblers — dishwasher-safe, with a top-rack recommendation.
Hand wash only, full stop
- 3D Painted Book Mug — not microwave or dishwasher safe; gentle washing preserves the painted books.
- Starbies Bearista Cup — not suitable for microwave or dishwasher; mild soap and a soft sponge.
- Star Wars Light Saber Color Changing Mug — hand wash only; the heat-revealed artwork is the whole point of the mug.
The split cases
Two products approve one machine and rule out the other. The Late Show Ceramic Mug is microwave safe but its listing advises against the dishwasher — hand wash to protect the cobalt glaze. The Sally X Jack Skellington Tumbler is the reverse problem: hand wash recommended, and never the microwave, because it's insulated stainless steel.
The 40 oz printed tumblers: assume hand wash
The Pooh, Hello Kitty, Strawberry Shortcake, and Dr Pepper tumblers all describe gentle hand-cleaning routines and none claims dishwasher safety (the Dr Pepper listing also explicitly says no microwave). Treat all four as hand-wash pieces — our cleaning guide shows the five-minute routine.
The full audit table
| Product | Dishwasher | Microwave |
|---|---|---|
| Mineral Crystal Coffee Mugs | Yes | Yes |
| Handcrafted Mineral Crystal Mugs | Yes | Yes |
| Textured Pattern Crystal Mug | Yes | Yes |
| Sparkling Crystal Gem Mugs | Yes | Yes |
| Porcelain Butterfly Mug | Yes | Yes |
| Bohemian Porcelain 6-Pack | Yes | Yes |
| Sunday Today / Sunday Printed | Yes | Not stated |
| Embossed Glass Tumblers | Yes (top rack) | Not stated |
| Late Show Ceramic Mug | No — hand wash advised | Yes |
| Sally X Jack 40oz Tumbler | No — hand wash | No (stainless steel) |
| 3D Painted Book Mug | No | No |
| Starbies Bearista Cup | No | No |
| Light Saber Color Changing Mug | No | No |
| Pooh / Hello Kitty / Strawberry / Dr Pepper 40oz | Not stated — hand wash | Not stated (Dr Pepper: no) |
Frequently asked questions
Why are some mugs hand wash only?
Painted and sculpted finishes - like the 3D Book Mug's painted book spines or the Bearista's bear shape - can be damaged by dishwasher heat and detergent, so their listings specify hand washing.
Can a stainless steel tumbler go in the microwave?
No. Metal does not belong in a microwave, and the Sally X Jack Skellington tumbler's listing states it is not suitable for microwave use.
What should I do when a listing does not mention the dishwasher?
Treat it as hand wash. That is the approach we take in the table above - a gentle wash never harms a piece, while a wrong dishwasher run can.
Are the mineral crystal mugs really safe for both?
Yes. The Mineral Crystal Coffee Mugs and Handcrafted Mineral Crystal Mugs are both listed as dishwasher- and microwave-safe, though the handcrafted version recommends occasional hand washing for long-term care of the finish.
Is the Late Show mug dishwasher safe?
No - its listing advises hand washing to protect the glossy cobalt finish, but it is microwave safe for reheating.
More from the Mineral Mug blog
- How to clean printed mugs and tumblers without ruining the print
- Ceramic vs porcelain vs glass: what our drinkware is made of
- The 3D Painted Book Mug: Style 1 vs Style 2, care and sizing
- Shop mineral & crystal mugs
This audit reflects the care instructions published on each product listing as of publication. Listings can change — the product page is always the final word for your specific item.