Prep first
Before you start
- Brush off dry pollen before you add any water.
- Start with mild soap and warm water every time.
- Keep pressure light on every pass.
- Rinse everything off before you dry the counter.
Algae and pollen on a countertop leave a colored film that's easy to smear if you rush it, and the material decides how hard you can push. Water is fine, but soaking and acids are off the table, so keep the cleaning light. If the spot has set, solid surface can be renewed over time, while laminate only gets a short last-resort treatment.
Pollen stain on granite or quartz usually responds to a light wipe, so don't scrub hard on the first pass. Lily pollen stain on marble needs the same restraint, and acid is the one thing to keep off it. If the mark has set and won't budge, a scouring cleanser is only worth trying once you've confirmed your top's material.
Before you start
What countertops can take
Safe to use1
- Water
Use with care3
- Chlorine bleach
- Solvents (alcohol, spot removers)
- Scrubbing and abrasives
Avoid3
- Soaking
- Acids (vinegar, lemon)
- Heat, once the stain is out
6 items
What you'll need
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- Soft brushLifts dry pollen off the surface and works the paste gently. (opens Amazon)
- Damp cloth or spongeCarries the soap and wipes the spot. (opens Amazon)
- Mild liquid soap or detergentThe first cleaner for all three countertops. (opens Amazon)
- Baking sodaMakes the gentle paste for a spot that stays. (opens Amazon)
- Warm waterUsed for the wipe, the paste and the full rinse.
- Soft towelDries the counter once it's rinsed.
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5 steps
Step by step
Step 1 of 5
Brush off the dry pollen
Start with the counter dry and use a soft brush to sweep the loose pollen off the surface. Brush toward the edge of the counter so the grains fall away instead of spreading. Only then move on to water.
Tip. A soft paintbrush or a clean makeup brush works well for this.
Careful. Don't wipe dry pollen across the counter; that rubs it into the surface.
Step 2 of 5
Wipe with mild soap
Dampen a cloth or sponge with warm water and a little mild soap or detergent. Wipe the spot from the outside edge toward the middle, and rinse the cloth often. Keep going until no pollen comes off on the cloth.
Tip. Wring the cloth well so it's damp, not dripping.
Step 3 of 5
Rinse and dry
Wipe the area with a clean damp cloth dipped in warm water to pick up the soap. Dry it with a soft towel and check the spot in good light. If the color is gone, you're finished.
Step 4 of 5
Try a baking soda paste
If the spot is still there, mix baking soda with a little water until it forms a paste. Spread it over the spot and work it with a soft brush for 10 to 20 strokes. Then wipe the paste away with a damp cloth.
Tip. Make the paste thick enough to stay put on the spot.
Careful. Keep pressure light on every pass; hard scrubbing isn't needed.
Step 5 of 5
Rinse the paste away
Rinse the whole area with warm water until no paste or soap is left on the surface. Dry it completely with a clean towel. Then check the spot again before deciding on a second round.
Careful. Rinse every cleaner off completely; leftover cleaner can damage the surface.
If you'd rather buy than mix
Best products for algae on countertops
Choose a mild liquid soap or detergent for the wipe, and plain baking soda for the paste. Skip anything sold for ovens, drains, rust or toilets, since those are for other jobs.
MOLD ARMOR Rapid Clean Remediation
How we picked these: each product is made for this type of stain, its maker doesn't warn against using it on countertops, and its directions fit the steps above.
Finished the steps? How does it look?
Nice work. Let it dry completely and check it again in good light. Here is what done looks like:
How to tell it's really gone →A faint mark usually needs one more round, not a stronger product.
Heavy buildup usually takes more than one round.
Heavy or long-standing buildup →When to call a professional →How to tell it's working
A clean spot matches the color of the counter around it, with no film you can feel when you run a fingertip over it. If a faint shadow remains, repeat the soap wipe and the rinse once before you decide on the paste.
What changes for yours
Adjust for your countertops
Granite countertops
The steps above work on granite, with one exception: vinegar stays out of the picture completely. Use the mild soap wipe first, then the baking soda paste only if the spot is still there.
Don't reach for an acid cleaner to speed things up, since it isn't safe on granite. The rest of the routine stays the same, from the brush to the final dry.
Quartz countertops
Quartz gets the gentlest version of the routine: the dry brush, the mild soap wipe and the warm rinse. Skip any acid or bleach, because nothing here supports using them on quartz.
Hold off on the baking soda paste unless the spot is still there after that, and keep your strokes light. If it doesn't lift after one paste round, call a professional stone cleaner instead of trying anything stronger.
Marble countertops
Marble follows the same brush, mild soap wipe and rinse as the other two stones. It's the same baking soda paste for a spot that stays, with the same light strokes.
The only thing you leave out is the vinegar, which the mistakes section explains, so the paste stays your second step. If the spot still shows after one paste round, call a professional stone cleaner rather than trying a stronger product.
Heavy or long-standing buildup
Pollen that has sat for days, or dried into the surface, is harder to lift than a fresh spot. Start again with the mild soap wipe, then the baking soda paste, and give it one or two more rounds.
Keep the pressure light each time, and rinse fully between rounds so no paste is left behind. Stronger products meant for other surfaces stay off stone, even when the spot has been there a while.
If the spot still hasn't faded after those rounds, the stone may need a professional who knows its finish. That's a realistic result for a stubborn spot, and it's safer than pushing harder at home.
Vinegar, baking soda, peroxide and more
Do home remedies work on algae on countertops?
Most home remedies for stains are built for fabric or other surfaces, so only a few fit a countertop. Start with the gentlest option, and test anything stronger on a hidden spot of the countertop first.
Works1Skip4Avoid1
What makes it worse
Mistakes to avoid
Don't use vinegar on marble or granite.
Vinegar is unsafe on marble, limestone, travertine, granite and other siliceous stone, and it stays out of quartz cleaning too. Reach for mild soap and, if the spot stays, a light baking soda paste instead.
Don't mix cleaners or add bleach.
Chlorine bleach must never be mixed with ammonia, vinegar, other acids or household cleaners, because toxic gas can form. Bleach and solvent options are only for laminate, so they stay off granite, quartz and marble here.
When to call a professional
If the spot stays after the soap wipe and two rounds of the paste, stop and call a professional stone cleaner. Don't keep trying stronger products at home, since the wrong one can damage the stone.
Questions
Does lily pollen stain granite?
It can leave a mark, especially if it sits, so brush it off as soon as you notice it. Use the mild soap wipe, and only add the baking soda paste if the spot stays.
Can I use the baking soda paste on quartz?
Only as a second step, after the mild soap wipe has failed to lift the spot. Use light strokes, 10 to 20 of them, and rinse fully afterward.
How long should I leave the baking soda paste on?
You don't need a set wait time. Work the paste in with 10 to 20 light strokes, then wipe it away with a damp cloth.
Can a damp cloth alone remove pollen?
Sometimes, for a fresh spot. A damp cloth with mild soap is the first step, and if the spot lifts there's no need for the paste.
What if the stain has dried on for days?
It's harder, but the same steps still apply. Expect to repeat them rather than reaching for something stronger, and bring in a professional if it won't budge.
What should I do if I'm not sure what my counter is made of?
Start with the mild soap wipe, which is the gentlest step and safe to try first. Hold off on the paste until you know the stone.
Algae on other materials
Other stains on countertops
Start from the bigger picture
How we know this
Every method, amount and warning here comes from university extension services, industry bodies and product makers. We read them, check every step for unsafe combinations and changed amounts, and write it up so you can follow it.