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Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
Most buyers end up happy with the unlined 18-ounce Artisan’s Anvil tankard. It holds more than most rivals and uses solid copper handles instead of plated brass. But capacity is only half the decision. The other half is whether a cup is genuinely unlined pure copper or a thin copper skin over steel. That single difference decides how cold your drink stays and how the metal ages in your kitchen.
This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Copper changes over time, so the right pick depends on if you want a bright showpiece or a patina that grows with use. Below you’ll find the sizes, the wall thickness, and the honest ageing quirks laid out plainly for every 100% copper cups option here.
Top Picks
How To Choose The Best 100% Copper Cups
The first thing to settle is what “100%” is really promising. A true copper cup has nothing but copper between your drink and the metal — no nickel, no tin, no stainless liner. That matters because a lining changes both the taste and the way the cup behaves over months of washing.
Solid copper versus copper plating
Plating is a whisper of copper over another metal, and it is the most common disappointment in this category. A solid cup feels heavy in the hand and rings differently when you set it down. You can often judge it by weight alone — a genuinely thick 18-ounce tumbler should feel substantial, not tinny.
Capacity you will actually use
A 12-ounce cup suits wine and small cocktails, while an 18-ounce stein holds a full beer with ice and room to spare. If you plan to serve a crowd, a set of two or four beats buying singles one at a time. Think about your glassware cabinet too, since taller tumblers need shelf clearance.
The patina question
Raw copper darkens. That is normal chemistry, not a fault, and many owners polish only when they want the mirror look back. Salt and lemon, or a commercial copper cleaner, handles it in a minute or two. Cups with a lacquer coating stay shiny but stop being bare copper on the inside, which defeats the point for most buyers.
Handles, seams, and welds
A welded copper handle will outlast a riveted one, because rivets loosen and can weep over time. Look for a handle joined in the same metal as the body. Smooth, rolled rims also matter — a sharp edge on a cup you lift to your lips every day is a small annoyance that never goes away.
Side-by-Side Comparison
| Model | Best For | Capacity | Weight | Set Size | Amazon |
|---|---|---|---|---|---|
| Artisan’s Anvil 18oz Copper Stein★ Best Overall | Full beers and iced cocktails | 18 oz (532 ml) | 7 ounces | Single stein | Amazon |
| Old Dutch OS429 Unlined Set of 4Best For Gifting | Gifting and a matched set | 16 fluid ounces | 6.4 ounces | Set of 4 | Amazon |
| JYPR Hammered Copper Tumblers | Daily water and stacked storage | 13 fluid ounces | — | Set of 2 | Amazon |
| DEDE Copper CC Series | Wine and slow sipping | 15.5 fluid ounces | 227 g | Single cup | Amazon |
| Kosdeg 12oz Copper Cups | Cocktail party service | 12 fluid ounces | — | Set of 4 | Amazon |
| DEMMEX 1mm Hammered Set of 2 | Big pours for two | 18 fluid ounces | 9 ounces | Set of 2 | Amazon |
| CopperMules Pure Copper Tumbler | Thick-walled daily copper water | 14 fluid ounces | 14.08 ounces | Single tumbler | Amazon |
Detailed Reviews
1. Copper Mug 18oz, 100% Pure Unlined Beer Tankard Moscow Mule
Our pick — 4.5+★ from 250+ verified ratings; the strongest balance of quality and price.
The stein that holds a whole pour and stays cold to the final sip.
Eighteen ounces is the number that puts this tankard ahead of its rivals for anything other than a small cocktail. It holds 532 ml, so a full beer plus ice fits without you tipping the glass and nursing the last third. Side by side with the Old Dutch set that holds 16 fluid ounces, that is a real difference in a single serving.
What wins people over is the build. The handle is welded from solid copper rather than a cheaper brass blank, and there are no rivets to work loose and weep. The body is unlined — no nickel, tin, or stainless steel between your drink and the metal — and the brushed finish is polished to a glossy sheen. The whole stein weighs 7 ounces, against 6.4 ounces for the Old Dutch mug.
The honest caveat is the base. Copper darkens with use, and the finish on the bottom is where it shows first. Treat it as a piece that will age rather than a museum object, and wipe it dry after washing to slow that down. A recipe ebook ships in the box, which helps if you have never mixed a mule before.
What Makes It The Winner
- 18 oz (532 ml) capacity handles a full beer with ice
- Welded 100% copper handle, no rivets to loosen
- Genuinely unlined — no nickel, tin, or stainless
- Keeps a full beer cold through the last sip, per buyer reviews
Where It Asks For Care
- The base is the first place tarnish appears
- Sold as a single stein, so a set costs more than a bundled pack
- A few buyers question whether the asking figure matches the finish
Grab this one if: you want one large, genuinely unlined cup for beer and long iced drinks.
Think twice if: you need four matching cups for a party — a set makes more sense.
2. Old Dutch International OS429 Moscow Mule Mug Set of 4
Four matching mugs in gift boxes, unlined and ready for a party table.
This is the pick for the host who needs four cups rather than one showpiece. Each mug holds 16 fluid ounces and arrives in its own full-color gift box, with the legend of the Moscow Mule, a recipe, and care instructions printed inside. The packaging comes as frustration-free, so no wrestling with hard plastic on arrival.
The construction is traditional: unlined and unlacquered, so there is nothing but pure copper touching your drink. The finish is smooth rather than hammered, and each mug stands 5 inches tall on a 4-inch width. That height is 0.05 inches over the DEDE CC Series, so shelf clearance is close to identical between the two.
Set your expectations on the ageing. These mugs are meant to patina, and polish is what brings the bright look back when you want it. The mixed note in the reviews is durability — some owners find the tarnish arrives sooner than they expected. That is normal copper behavior rather than a faulty unit, so a quick salt-and-lemon rub now and then keeps them presentable.
Why the box matters: a matched four with printed gift packaging is a straightforward wedding or housewarming present, and the smooth unlined interior suits anyone who wants bare copper without the hammered texture.
The realism check: copper of this type darkens with use, and the honest expectation is that these will need occasional polishing rather than staying mirror-bright on their own.
Reach for this if: you are buying for a household or a gift and want four unlined cups in one go.
Look elsewhere if: you want a single large stein for yourself.
3. JYPR Hammered Pure Copper Water Drinking Glasses Set of 2
A stackable pair for the water you keep meaning to drink more of.
These are water cups first, cocktail vessels second. Each one holds 13 fluid ounces at 4.1 inches tall and 3.4 inches wide, which is a comfortable hand size for a glass of water at a desk. They stack, so a pair takes up the footprint of one in a cupboard that is already crowded.
The hammered surface is the visual hook — dimpled by hand, polished to a bright finish, and made with no lacquer coating inside so you drink straight from copper. They are listed as BPA free and lead free. What buyers praise most is exactly that quality of the finish and the shine of the color in person.
Two things to know before you commit. The material is a point of disagreement in the reviews, with some questioning whether it is solid copper rather than a plated construction, so buy from the listing that states it plainly. And these do discolor over time, which is the normal trade-off with bare copper. Neither is a reason to skip them for daily water duty.
What they are built for: a pair of easy, stackable cups for water, iced tea, and juice. They sit at the everyday end of the copper spectrum, with a hammered finish that looks better on a shelf than a plain tumbler.
The fair warning: bare copper discolors, and if you want a cup that stays uniform in color with zero upkeep, this is not it.
Best for: anyone swapping a plastic water glass for copper and wanting a stackable pair for daily use.
Skip if: you want a large stein for beer or a thick-walled luxury feel.
4. DEDE Copper CC Series (15 oz) Handcrafted Hammered Tumbler
Hand-hammered from base to rim, with a mirror shine on the outside.
The whole body and base of this tumbler are hammered by hand, and the outer surface is polished to a mirror-like shine. It stands 3.94 inches tall on a 4.01-inch top diameter, tapering to a 2.76-inch base. That makes it unusually short and wide — a wine-glass footprint rather than a tall beer mug.
“Full” and “effective” capacity are different numbers here, and the listing is refreshingly honest about it. The maximum fill is 15.5 fluid ounces, but the usable pour is around 13.5 fluid ounces, which suits a glass of wine or a slow-sipped cocktail rather than a pint. It weighs 227 g, giving it a dense, settled feel in the hand.
The cup is unlined and uncoated, so the inside is bare copper and nothing else. Care is simple: hand wash in warm soapy water and dry straight away. Water left sitting on the outside will tarnish the surface quickly — the mirror finish is the fragile part, not the cup itself.
The Case For The CC Series
- Body and base both hand hammered, not just the sides
- 15.5 fl.oz. full capacity, 13.5 fl.oz. usable
- 227 g weight gives it a solid, premium heft
- Mirror-polished outer surface looks superb on a table
What You Give Up
- That mirror finish marks and tarnishes if water sits on it
- Short and wide, so no good for a long beer pour
- Sold as a single cup
The one to pick: a wine-and-cocktail drinker who wants a handmade cup with real visual presence.
The catch to accept: you will dry it immediately after every wash to keep the shine.
5. Kosdeg Copper Cups, 12 Oz, Set of 4
Four cups built for the cocktail table, not the dinner plate.
The 12-fluid-ounce capacity is the smallest on this list, which is by design rather than a flaw. At 3 inches wide and 4 inches tall, these are sized for a mule, a spritz, or a glass of red at a party. Set them beside the Old Dutch mugs at 16 fluid ounces and the size gap is obvious — a third of the volume, and that is the whole pitch.
What makes them worth owning is the appearance. Polished copper with a natural finish, four to a set, and the sort of look that gets photographed at a bar. Copper pulls heat fast, so a mule stays ice cold and red wine holds its cellar temperature. BPA free, with a straw included.
Be realistic about the finish. Several owners note the copper tarnshes easily, and a few describe green and brown discoloration after a single use — that is what happens when acidic drinks sit in bare copper. Rinse and dry promptly and the cups hold their look. Let the lime wedge linger overnight and you will see why.
The party argument: four matching copper cups, polished and photograph-ready, sized right for cocktails rather than beer. This is the set that dresses a bar cart.
The maintenance side: acidic mixers and bare copper do not get along for long unattended, so a quick rinse after each round is part of the deal.
Choose these when: you host often and want four good-looking cups for cocktails and wine.
Pass if: you want a big cup for beer or heavy daily water drinking.
6. DEMMEX (Set of 2) 1mm Thick Pure Copper Cups, 18 Ounces
A millimeter of solid copper, hammered by hand and built to hold 18 ounces.
Wall thickness is the number that separates this pair from most of the field. One millimeter of unlined, uncoated hammered copper is a genuinely thick shell, and you feel it the moment you lift one.
Both cups are handmade in Turkey, and the finish is hammered rather than polished, so the dimples are the design. No lid or straw nonsense to lose — the included components are listed as a lid and a straw, so check what ships if that matters to you. The interior is bare copper, unlined and uncoated.
Care is the full story here. Hand wash, then dry immediately with a soft cotton cloth to avoid water stains. Pure copper will develop a natural patina, and the maker says so plainly. Polish occasionally with a copper cleaner or a sea salt and lemon mix when you want the shine back. Keep that rinse-and-dry habit and 1mm copper will outlast most glassware in your cabinet.
Why The Thickness Wins
- 1mm solid copper — a thick, weighty shell
- 18 oz capacity for full beer pours
- Handmade in Turkey with a hammered finish
- Two cups, so a couple or a pair of friends is covered
What It Demands
- Must be dried immediately after washing to avoid stains
- Patina is guaranteed, so polishing is ongoing
- No customer reviews on the listing to lean on
Built for: a two-person household that wants the thickest walls and the biggest pour in one order.
Worth knowing: this pair rewards a rinse-and-dry habit and punishes a sink full of soaking dishes.
7. CopperMules Pure Copper Tumblers, Extra Thick, 16oz
The heaviest tumbler here, sold with Turkish leather coasters and a lifetime warranty.
You know what you are holding within a second of picking this one up. At 14.08 ounces it is roughly double the weight of the Old Dutch mug at 6.4 ounces, and the listing leans into that with the phrase “super heavy.” The capacity is listed as 14 fluid ounces, and owners describe it as a large cup. The brand’s own marketing mentions 16 ounces, so measure your pour rather than trusting the headline number.
What makes it the premium pick is the extras around the copper. The interior is raw copper, which the maker notes will tarnish naturally and can be revived with salt and lemon or a commercial tarnish remover. The included coasters are 11-13oz weight Turkish leather, genuinely thick rather than a token insert. There is also a lifetime warranty: if the cup fails under regular use, it is replaced at no charge.
The trade-off is in the reviews — the edges. Some owners find the rims and handles sharper than they would like on a cup you lift to your mouth. Check the rim on arrival and be prepared to return under the warranty if it bothers you. Everything else about the build is as solid as the weight suggests.
The premium case: thickest feel on the list at 14.08 ounces, raw copper interior, leather coasters in the box, and a lifetime replacement promise behind it.
The one check: the reported sharp edges mean you should inspect the rim and handle carefully when it lands.
For the buyer who wants: the most substantial cup and a real warranty standing behind it.
Fair hesitation if: you are sensitive to rim edges on a drinking vessel.
Know the Specs
Unlined vs. Coated Copper
An unlined cup has nothing but copper against your drink. A coated cup is sealed with lacquer or lined with nickel, tin, or stainless steel. Unlined cups give you bare copper against your drink and better cold retention, but they patina and need occasional polishing. Coated cups stay shiny and need less care, but you lose the bare-metal interior. Most serious buyers want unlined.
Wall Thickness and Weight
Thicker copper holds a chill longer and feels heavier and more solid in hand. Weight is a shortcut to judging this — an 18-ounce tumbler at 9 ounces of copper is a thicker shell than one at 7 ounces. A lightweight cup is often thin, and thin copper dents and distorts. If the listing names a gauge or a millimeter figure, that is the spec to compare.
Capacity in Fluid Ounces
Capacity decides what a cup is actually good for. Around 12 fluid ounces suits wine and mixed drinks, 15 to 16 covers a mule with ice, and 18 ounces handles a full beer. Some listings quote a “full” capacity and a smaller “effective” one — the pour you can actually make without spilling. Read both numbers before you decide.
Handle Welds and Rims
A welded solid-copper handle outlasts a riveted one, which can loosen or leak over time. Rims matter too — a smooth rolled rim is comfortable to drink from, while a sharp or unfinished edge gets noticed every single sip. These two details rarely show up in the headline specs, but they decide whether a cup feels handmade or rushed.
Common Questions
Is it safe to drink water from an unlined copper cup every day?
Why did my copper cup turn dark or green?
How do I tell real solid copper from copper plating?
Can I put a copper mug in the dishwasher?
Do copper cups actually keep drinks colder than glass?
What is the difference between 13.5 and 15.5 ounce copper cups?
Will a hammered copper cup scratch my table?
How long does a set of four copper cups take to patina?
Are copper cups heavy to hold?
Can I use a copper cup for hot coffee or tea?
The Bottom Line
For the safest single purchase, pick the Artisan’s Anvil 18oz tankard. Its welded solid-copper handle and 532 ml capacity make it the most capable daily cup on the list. For serving a group, the Old Dutch unlined set of four fills a party table in one order and arrives gift-boxed. For the heaviest, most premium-feeling cup with a warranty behind it, reach for the CopperMules tumbler.
The one nudge worth making: buy the cup that matches how you will actually use it, because a 12-ounce cocktail cup and an 18-ounce beer stein are different tools, and both are sold here for good reason.
How we choose
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of November 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
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