Copper vs Stainless Steel Tongue Scraper: Which Is Better?

Copper and stainless steel tongue scrapers clean your tongue about equally well; no study has shown that either metal removes more coating or reduces bad breath more than the other. The real differences are practical. Stainless steel stays shiny, is harder to bend, and can go in the dishwasher or be boiled. Copper is the traditional Ayurvedic choice, but it tarnishes, needs polishing and is softer. For most people stainless steel is the lower-maintenance pick; copper makes sense if you prefer it and do not mind the upkeep. Here is the full comparison.

Copper vs stainless steel at a glance

	Copper	Stainless steel (316L)
Cleaning the tongue	Works well with good technique	Works well with good technique
Appearance over time	Tarnishes and darkens; needs polishing	Stays the same
Hardness	Softer; thin strips can bend	Stiffer; keeps its shape
Cleaning the tool	Hand wash, dry well, polish periodically	Rinse, dishwasher or boil
Metal sensitivity	Stop if it irritates your tongue	Contains nickel; see below
Tradition	Long use in Ayurvedic practice	Common in modern dental tools
Price	Similar	Similar

Is copper or stainless steel better for cleaning your tongue?

Neither, as far as the evidence goes. What removes the coating is the edge moving across the tongue, not the metal. Studies of tongue scraping have used plastic and metal scrapers, and a 2021 trial found that cleaning thoroughly from the back of the tongue forward mattered more than which tool was used (Choi et al., 2021).

There is one small study on copper specifically. Thirteen dental students cleaned their tongues with a toothbrush for three nights and with a copper tongue scraper for three nights, and morning bad breath measured lower after the scraper nights (de Moraes Melo Neto et al., 2026). That supports scraping over brushing, in line with other studies using non-copper scrapers (Pedrazzi et al., 2004), but it did not compare copper with steel. We could not find any study that does.

Does copper's antimicrobial effect matter?

Copper is often sold on the claim that it is antibacterial. That part is real: bacteria, yeasts and viruses are killed on metallic copper surfaces, a process called contact killing, at rates measured over minutes to hours (Grass et al., 2011). That may help keep the scraper itself cleaner as it sits between uses, although nobody has tested this on tongue scrapers. It does not carry over to your tongue: a scraper touches it for a second or two per stroke, and no clinical study has shown that a copper scraper reduces tongue bacteria or bad breath more than a steel one. It is also worth knowing that tongue scraping in general barely changes the number of bacteria on the tongue; one study found it mainly removes the coating they feed on (Quirynen et al., 2004). So buy copper because you like it, not because it will sterilize your tongue.

Durability and care

Copper reacts with air and moisture and darkens over time. That tarnish is not dangerous, but most people polish it off to keep the scraper looking clean, and copper should be dried after each use. It is a softer metal, so a thin copper strip can bend if dropped or squeezed, which changes how it sits on your tongue.

Stainless steel resists corrosion, which is why it is used for kitchen and dental tools. Within stainless steels, 316L contains molybdenum, which makes it more resistant to corrosion than the common 304 grade, useful for something that lives in a wet bathroom. A one-piece steel scraper can be rinsed, boiled or put in the dishwasher. See how to clean a tongue scraper for both metals.

Metal allergies

Stainless steel, including 316L, contains nickel. Cleveland Clinic lists surgical-grade stainless steel among the materials people with nickel allergy can usually choose for jewelry (Cleveland Clinic), but if you have a confirmed nickel allergy and react to steel, check with your doctor or choose copper or plastic. If any scraper makes your tongue itch, swell or sting, stop using it.

Which should you buy?

• Choose stainless steel if you want something you can throw in the dishwasher, that keeps its shape and look for years, and needs no polishing.
• Choose copper if you follow Ayurvedic practice or simply prefer it, and do not mind drying and polishing it.
• Either way, check that the edge is smooth and rounded, that it reaches the back of your tongue, and that you will actually use it every day.

We make one product: Zoral's tongue scraper is a single piece of 316L stainless steel with no seams, dishwasher safe and boilable, sold as a 2-pack for $9.99, or $12.99 with two ventilated travel cases, with a 30-day money-back guarantee. If you prefer copper, a well-made copper scraper will clean your tongue just as well. For plastic in the mix too, see stainless steel vs copper vs plastic, and for brand comparisons see our compare page.

The bottom line

Copper vs stainless steel is a question of upkeep and preference, not cleaning power. Both work. Stainless steel wins on durability and easy cleaning; copper wins on tradition. Pick the one you will use every morning, and focus on reaching the back of your tongue with light pressure, which is what actually makes the difference. For technique, see how to use a tongue scraper.