How to Clean Birkenstocks

More recently, a few dollars in pantry supplies can reset them completely.

TL; DR

• A paste of two parts baking soda to one part water scrubbed in circles with an old toothbrush pulls out most embedded grime and neutralizes odor.
• After cleaning, air dry for at least 24 to 36 hours away from heat; forced drying cracks the cork and can cause the sole to separate.
• Apply a thin layer of cork sealer every 4 to 6 months (or whenever the edge loses its shine) to stop crumbling and add up to 10 years of life.

Key Point

• The single worst mistake is putting them in a dishwasher or soaking in water—it dissolves the glue and ruins the footbed.
• That dark footprint you’re fighting to erase? It’s partially a natural patina of oils; over-cleaning can actually make the shoe less comfortable.
• Use fine-grit sandpaper (150 to 180) for suede liners, not liquids, when you want to restore that soft, brand-new texture.
• The Birkenstock deluxe care kit runs about $22 and includes suede brush, cork sealer, and a cleaning block; worth it if you own more than one pair.
• You don’t need specialty leather cleaners for synthetic Birko-Flor uppers—a damp cloth and mild soap get the job done.

What You’ll Need

Sure enough, gather everything before you start, because once the soles. No, scratch that, get wet you won’t want to hunt for supplies. The whole active process takes maybe 30 minutes.

Drying eats up the next day and a half. Skill level?

In reality, if you can brush your teeth and butter toast, you’re overqualified. This becomes way more relevant in a moment.

• Baking soda (the cheap stuff in the orange box)
• Clean water in a small bowl
• An old toothbrush — firm bristles work best
• Fine-grit sandpaper (150–180 grit) or a dedicated suede brush
• Cork sealer (Birkenstock’s own runs around $22, but other brands exist)
• A clean, dry microfiber cloth or soft rag–Mild liquid soap (for synthetic uppers like Birko-Flor)
• A spray bottle (optional, helps dampen the footbed lightly)
• Patience, because the 24- to 36-hour drying window is non-negotiable

How to Clean Birkenstocks: The Complete Process

I’ve tried shortcuts, more water, less scrubbing. A fan blowing on them overnight, and they all backfire. Stick with this sequence and you’ll avoid the pitting, cracking.

Step 1: Mix a Baking Soda Paste and Scrub the Footbed

This step alone handles about 90% of the smell and surface dirt, and the paste’s grit is just right to break down oils without wrecking the suede liner, and the trend keeps going. Those numbers tell a story. The ratio matters: two parts baking soda to one part water yields a thick. Toothpaste-like consistency that won’t drip into the cork or glue layers.

Start by emptying a couple of tablespoons of baking soda into a small bowl…which means and add water a few drops at a time while stirring.

You want a paste that clings — actually. That’s not quite right, to the toothbrush, not a runny liquid. Dampen the footbed very lightly with a spray bottle—I use just a mist, not a soak. Then scoop up a dab of paste and scrub in small circles, working heel to toe. Spend extra time on the toe impressions and heel cup; those areas collect more sweat and skin oils.

After you’ve covered every inch. Wipe away the residue with a just damp cloth. At this point the footbed will look noticeably lighter, but don’t panic if it’s still splotchy; the next step addresses that.

Step 2: Buff Away Stains and Restore the Suede Liner

Even after the paste treatment, you’ll often see, I mean, a faint dark outline or some patchy areas. The thing is. Long-time owners on forums swear by 150-grit sandpaper to gently shave off that top layer of embedded grime, and honestly, it works better than any liquid cleaner… the idea isn’t to gouge the suede, just a light buff.

For all intents and purposes, take a small square of 150 or 180 grit sandpaper (or a suede brush. If you’ve got one) and rub in one direction across the entire footbed, using quick, light strokes. Let that sink in for a second. You’ll see a fine powder accumulate.

That’s the soiled suede fibers lifting off. Go hassle-free near the edges so you don’t accidentally snag the cork.

When the surface feels soft again and the color looks even. A notable twist. You’re done with the footbed for now. If you own the Boston clog or a suede-clad Arizona.

You’ll definitely want to read this guide on suede Birks for extra tricks on lifting deeper set-in marks.

How do I know if the footbed needs replacing rather than cleaning?

If you see deep cracks that catch your fingernail or the footbed has compressed to half its original thickness. Cleaning won’t bring back support—it’s time for a resole or new pair. Minor darkening and surface odor, however. Almost without fail respond to the baking soda method.

Step 3: Clean the Uppers Based on Material

That’s where everyone mess up the most. Because water can stain suede and some soaps leave residues, so I treat this as a fork in the road depending on what your straps are made of.

What about synthetic Birko-Flor uppers?

For Birko-Flor, simply mix a couple drops of mild soap in a bowl of water. Dip a cloth, wring it out until it’s just damp, and wipe (and that implies quite a bit) the straps down. Don’t soak. More data needed. Then go over it with a clean wet cloth to remove any soapy film and pat dry.

No need for vegan-specific cleaning routines unless you’re dealing with stubborn stains, but the basics work at least 95% of the time.

How do I clean suede Birkenstock uppers?

Avoid all moisture on suede straps if possible. For oil-based spots, sprinkle a bit of cornstarch, let it (depending entirely on the context) sit overnight, then brush off. I’ve seen liquid tries leave water. Or rather, rings that are nearly impossible to remove.

“Reseal your cork as soon as it begins to look dull and dry. When new, it has a shiny glue coating that must be maintained to prevent cracking.” — Complete Birkenstock Technical Guide

Step 4: Seal the Cork to Prevent Cracking

By most accounts, yet, sealing the cork is maybe the most impactful five-minute habit you can pick up for your sandals. The factory coats the sides with a glue-like seal that repels moisture.

Holds those tiny cork granules together. Once that seal wears off, the cork slowly dries, and starts crumbling from the edges inward. The thing is, according to Birkenstock’s technical documentation, you should reapply sealer every — you know what, 4 to 6 months—or the moment the edge loses its sheen.

Open the cork sealer (the Birkenstock brand bottle is about $22. That’s a significant gap, and lasts over a year). The data speaks for itself. Plus, dab a little onto the applicator brush, and spread a thin, even layer along (which aligns with standard practices) the entire exposed cork edge.

Don’t let it pool. It’ll absorb rapid, within 10 to 15 minutes it’s touch-dry. The thing is, i usually do this before bed so the sealed cork has all night to cure undisturbed.

You probably know someone who’s dealt with that annoying odor that seems to come back overnight, and honestly, that’s where you lean into proven deodorizing methods that go beyond a simple wash. Store this one. It ties everything together later.

Step 5: Dry the Sandals Completely and Protect the Sole

This is the step where impatience wrecks hours of good work. I’ve tried fanning them on the porch in the shade, and still it took 28 hours before the footbed felt bone-dry to the touch. The official guidance is 24 to 36 hours of passive air drying.

In a room with decent airflow. Lay the sandals flat or upside down on a towel. Never put them in front of a heater, radiator, hairdryer, or in a closed car on a sunny day.

High heat cooks the cork, causing it to shrink unevenly, and possibly separate from the sole.

Don’t; well, actually, leave your shoes in direct sunlight for extended periods. The follow-up question is obvious.

I once got reckless and set a pair by a dehumidifier vent. Thinking it’d speed things up, and the cork developed fine crack lines within two months. So now I wait the full dry time. After that, the sandals are ready to wear.

Troubleshooting Common Mistakes

Still, even most of us who’ve owned Birkenstocks for years slip up. Here are the four errors I see most, and how to address them.

1. Dishwasher “cleaning” — Reddit horror stories confirm that running a pair through a dishwasher cycle almost always warps the cork, erodes the glue, and leaves the footbed irreversibly stiff. If you’ve already done this, check if the sole is still firmly attached; if not, a cobbler might be able to re-glue, but success isn’t guaranteed.
2. Too much water during scrubbing — Oversaturating the footbed seeps moisture into the glue line between the cork and sole, and you’ll start seeing separation. If you notice a small gap, stop all water cleaning and let it dry for 72 hours before assessing.
3. Over-sanding the footbed — If you see the jute layer appearing as beige threads, you’ve sanded through the suede. The footbed will still function but will feel rougher. You can’t replace the suede, but you can add a thin insole to salvage comfort.
4. Ignoring the cork until it crumbles — Once the cork starts flaking off in chunks, sealer alone won’t replace lost material. You’ll need cork filler or a professional resole. Catching it earlier, when the shine just fades, is far cheaper.

What to Do Next

Cleaning is just the start of keeping your Birks in rotation for years. Now that the footbed is fresh and the cork is sealed, build a monthly speedy-check ritual: every few. Correction, weeks, inspect the cork edge for dullness, brush off surface dust, and store them out of direct sun. Stocking a small care kit with sandpaper, cork sealer.

A suede brush means you’ll rarely ever be caught off guard again. If you’ve got a Boston pair, I’d immediately bookmark the detailed Boston suede care guide. You can reference it on the next cleaning day.

🔍 Research Sources

Verified high-authority references used for this article

1. birkenstock.com
2. rei.com
3. stansfootwear.com
4. schuh.co.uk