As an Amazon Associate, we earn from qualifying purchases. Affiliate links do not affect our ratings. Learn more.

The Best Non-Toxic Dishwasher Cleaners

We vetted dishwasher cleaner against the Welpr Standard and here are our top picks.

Camille May

Cofounder & Product Curator

Olushola M. Awoyemi

Medical Reviewer, PhD

Here's what we look for:

Full ingredient transparency, no proprietary blends or hidden ingredients
Fragrance-free preferred; if scented, every ingredient must be fully disclosed and meet our standard
Free from harsh sulfates, quats, bleach, ammonia, parabens, and phthalates
No optical brighteners, artificial dyes, and minimal preservative use
Trusted third-party certifications like EWG VERIFIED™ or MADE SAFE® when available

The Best Non-Toxic Dishwasher Cleaners for a Cleaner, Chemical-Free Kitchen

On Welpr, terms like "non-toxic," "safer," "cleaner," "healthier," and "vetted" are editorial labels based on our own standard for product assessment. They are not guarantees, certifications, or medical claims. Learn more.

Top Pick

The Clean People

Dishwasher Cleaner Tablets for Removing Limescale

Free From: Cruelty Free
Highlights: Vegan, Cruelty-free, Made in USA, No synthetic fragrance, Money-back guarantee, Tablet, Limescale & mineral deposits, Septic safe

8.4

Performance score

Where to buy

Amazon
See price

Pros

Visibly cleans the inside of the dishwasher after just one cycle, even on older machines.
Can be used in an empty dishwasher or alongside a regular load of dishes.
Tablets are individually wrapped and easy to use; just drop one at the bottom and run a normal cycle.
Leaves the dishwasher smelling fresh without a strong chemical scent.
Tablets can be torn in half to adjust cleaning strength for lighter jobs.

Cons

One person with heavier buildup found a single tablet didn't remove all the grime and needed to consider using two.

Each tablet uses plant-derived acids to dissolve limescale, mineral buildup, and grease inside your dishwasher, including internal components you can't reach by hand.
You can run it in an empty dishwasher as a dedicated cleaning cycle, or drop a tablet in the bottom alongside a loaded rack with your regular detergent. Either way, it works during a normal wash cycle.
The brand recommends using one tablet per month for maintenance. If there's visible mineral buildup, two tablets in a single cycle is the suggested starting point.
Compatible with all major dishwasher brands and septic systems, so it's a non-toxic dishwasher cleaner that doesn't require checking your manual first.
Clean People started with laundry sheets and expanded into appliance cleaners. All their products are manufactured in the USA.

Free email mini-course

Welpr Blueprint: Go Non-Toxic Mini-Course

The 80/20 guide to going non-toxic the easy way.

CrystalTabs

Dishwasher Cleaner Tablets

Highlights: Fragrance-free, Money-back guarantee, Tablet, Limescale & mineral deposits, Septic safe

8.3

Performance score

Where to buy

Amazon
See price

Pros

Eliminates persistent dishwasher odors quickly, often after just one or two uses.
Dead simple to use: drop a tablet in, run an empty cycle, and you're done.
Leaves no lingering scent after the cycle, which is a standout for people sensitive to fragrances.
The 24-count box lasts roughly a year with regular monthly or bimonthly use.
Visibly cleans stainless steel interiors, clears clogged spray jets, and removes food residue and staining.

Cons

Struggled with heavy limescale and hard water mineral buildup; better suited for routine maintenance than deep descaling.
No visible difference to the dishwasher interior for at least one person, though dishes came out cleaner afterward.

Tablet-format cleaner you drop into an empty dishwasher and run on a hot cycle. It dissolves limescale, grease, and mineral deposits from the interior, spray arms, and heating elements rather than cleaning your dishes directly.
Fragrance-free and leaves no residue, which matters if your household is sensitive to scents or you've noticed a filmy coating on glassware after running a cleaning cycle with other products.
Most dishwasher cleaners come as liquids or single-use pouches. As a non-toxic dishwasher cleaner in solid tablet form, this one skips the measuring and mess entirely.
Compatible with both standard and high-efficiency (HE) machines, so you don't need to check your dishwasher brand before buying.
Uses biodegradable cleaning agents and is rated septic-safe, which is relevant if your home runs on a septic system rather than municipal sewer.

Truly Free

Natural Dishwasher Cleaner

Free From: Cruelty Free
Highlights: Cruelty-free, Refillable, Money-back guarantee, Powder, Limescale & mineral deposits

8.1

Performance score

Where to buy

Amazon
See price

A powder-format non-toxic dishwasher cleaner that comes in a single-use packet. You sprinkle it into an empty dishwasher and run a hot, heavy cycle; it's meant to clean the machine itself, not your dishes.
Targets grease, limescale, mineral deposits, and hard water stains inside the dishwasher. It also doubles as a deodorizer, so it's useful if your machine has developed a smell between loads.
The formula has a natural lemon scent from the cleaning agents themselves, not added fragrance. It's a loose powder, not a tablet or pod, so it disperses across the bottom of the machine rather than dissolving from a single point.
Truly Free started after the founders' newborn developed a severe rash traced back to chemicals in household cleaning products. The brand uses a refillable container system: your first order includes a reusable container, and future purchases are refill packets.
Most conventional dishwasher cleaners (like Affresh or Finish) come as tablets with synthetic surfactants. This one uses a short list of plant-based and mineral-based ingredients in powder form, which is a noticeably different approach for the category.

How to Swap to Non-Toxic dishwasher cleaner:

Here's how to swap to non-toxic dishwasher cleaner:

What to know about dishwasher cleaners

Dishwasher cleaners are designed to remove grease, limescale, and odor buildup inside your machine. While they don't touch your skin directly, residues can linger on dishes and interior surfaces that contact your food. Welpr focuses on the formulation — specifically synthetic fragrances, harsh chemical agents, and unnecessary additives.

Because residues may transfer to plates and utensils, the materials in a dishwasher cleaner matter more than you might expect.
Products used monthly pose less risk than daily-use items, but choosing a cleaner formula is still a simple upgrade.

Check what you already use

Look at the label on your current dishwasher cleaner and note the key details. Pay attention to whether it contains synthetic fragrances, dyes, or chlorine-based bleaching agents.

Look for the words "fragrance," "parfum," or "dye" on the ingredient list — these are common additives that don't improve cleaning performance.
Check if the label lists specific plant-based or mineral-based ingredients, which is a good sign of a simpler formula.

Use your current cleaner more carefully

If you're finishing up a dishwasher cleaner before switching, a couple of small steps can reduce residue left behind. This is especially worth doing if you notice a strong scent after a cleaning cycle.

Run an extra empty rinse cycle after using the cleaner to help flush out any lingering residues.
Open the dishwasher door after the cycle finishes to let moisture and fumes ventilate rather than sitting inside the sealed machine.

Choose a cleaner replacement

Look for dishwasher cleaners with short, simple ingredient lists built around plant-based or mineral-based cleaning agents. Fragrance-free and dye-free options are the easiest way to avoid unnecessary additives.

Be cautious of vague claims like "natural" or "eco-friendly" without a clear ingredient list to back them up — always check what's actually in the product.
Click the button above to shop Welpr Approved dishwasher cleaners.

Camille May

Cofounder & Product Curator

Camille May is the co-creator of Welpr and a guide for clean living. After selling her last company in the health food space, she went non-toxic while working to heal an autoimmune condition....

View full profile

Olushola M. Awoyemi

Medical Reviewer, PhD

Olushola M. Awoyemi (aka Shola) is a board-certified toxicologist and a research scientist with a PhD in Environmental Toxicology. Shola's long-term ambition is to be recognized as a world-renowned expert in toxicology,...

View full profile