💄 Oil + pigmentHow to remove tomato sauce & ketchup stains

Lycopene + oil · cold water from the back, then detergent

The red in ketchup, pasta sauce and pizza sauce is lycopene from tomatoes. Like kimchi juice, it's a carotenoid pigment that dissolves readily in oil, so it soaks into the fibers along with the oil in the sauce. Remove the solids, break up the oil, then remove the color, in that order.

🔬 Why this order works

Lycopene barely dissolves in water, so rinsing with water alone leaves a red tinge. Dish soap wraps up the oil and lifts it out, and oxygen bleach and light break down the remaining pigment.

🧺 Step by step

Tap a step when it's done to tick it off.

Scrape off the sauce with a spoon or a card.
Rinse with cold water run through from the back of the garment.
Apply dish soap or liquid detergent, tap it in, and leave for 10 minutes.
Rinse, and if red remains, soak in oxygen bleach solution for 30 minutes to 1 hour.
Wash, check, and dry in the sun if possible.

👕 By fabric

⚪ White cotton & linen

Oxygen bleach and sunlight remove most of it. On white cotton you can also dab on a little lemon juice or vinegar and leave it in the sun.

🎨 Colors & synthetics

After pre-treating with dish soap, test a color-safe oxygen bleach before using it. Sun on the stained area only, and briefly.

🧶 Wool, silk & cashmere

Remove the solids, blot and rinse with cold water, then take it to a dry cleaner.

🚫 Don't

Rubbing with the solids still on.
Rinsing with hot water.
Using the dryer while a red tinge remains.

⏳ If it has already dried

For dried sauce stains, brush off the surface residue with a soft brush, apply dish soap and let it sit for 30 minutes, then soak in oxygen bleach solution for a few hours.

💡 Tip

When sauce splashes onto your shirt while eating pizza or pasta, scraping it off with the edge of a spoon spreads it far less than wiping with a napkin.

❓ Common questions

Why shouldn't I use hot water on ketchup stains?

Ketchup contains sugar and starch, and tomato pigment goes deeper into the fibers when heated. The right order is to remove as much of the solids and color as possible with cold water, then use warm water at the washing stage.

Does the same method work on red stains in plastic containers?

It's the same lycopene pigment, so wash off the oil with dish soap and leave them in the sun for a day; most of it will fade.

How is it different from tteokbokki sauce?

Both are oil-soluble red pigments, so the order is almost the same. Tteokbokki has more chili pigment and oil, so just give the dish soap stage longer.

🔗 Related stains

Check the care label firstBleach, wash and dryer symbols explained

🧭 All stains

🧼 Basic rules & cleaning-agent guide

General home methods. For valuable garments or unknown fabrics, take them to a dry cleaner and say what the stain is. Follow product labels for bleaches and solvents, ventilate, and never mix them.