How to Clean a Bathtub and Remove Tub Stains

Everyday shine, soap-scum removal, and stain-by-stain fixes — without scratching the tub.

Quick facts: Everyday clean about 10 minutes; Deep clean 20-30 minutes; Difficulty Easy; Cost Pantry basics.

Know Your Tub First

Identify the material before you pick a cleaner — the wrong tool can scratch or dull the surface permanently.

• Acrylic / Fiberglass — light, slightly flexible, warm to the touch — soft cloths and soft sponges only, never abrasive pads or steel wool.
• Porcelain enamel (on steel or cast iron) — heavy, hard, glossy, cool to the touch — soft tools; never steel wool, it scratches the enamel.

What You Will Need

• Baking soda
• Mild dish soap
• White vinegar in a spray bottle
• 3% hydrogen peroxide (for pink / mildew marks)
• Lemon and table salt (for rust marks)
• Soft sponge, soft cloths, and an old toothbrush for edges and grout lines
• Rubber gloves (optional, but recommended)

Everyday Clean

1. Rinse the tub with warm water to loosen loose dirt and hair.
2. Sprinkle about 1/2 cup baking soda over the tub floor and sides.
3. Add a few drops of dish soap to a damp soft sponge and wipe the whole tub in small circles.
4. Rinse well with warm water and wipe dry with a soft cloth to prevent water spots.

Done after every few uses, this keeps soap scum from building up in the first place.

Deep Clean — Soap Scum

1. Make a paste: mix 1 cup baking soda with 2-3 tablespoons of water.
2. Spread the paste over the soap scum and stained areas.
3. Spray lightly with vinegar and let it fizz for 10-15 minutes.
4. Scrub gently with a soft sponge, working from the top down.
5. Rinse thoroughly and buff dry with a soft cloth.

Safety — read before you start

• Never mix cleaners. In particular, never mix vinegar or any acid with bleach, and never mix hydrogen peroxide with vinegar in the same bottle.
• Maximum acid contact time is 30 minutes. Do not leave vinegar or lemon on the surface longer than this.
• No boiling water on acrylic or fiberglass tubs — sudden heat can warp or crack them. Use warm water only.
• Always test a new cleaner on a small hidden spot first, and ventilate the bathroom while you clean.

Stain-by-Stain Guide

• Limescale / hard-water marks — soak a cloth in vinegar, lay it on the mark, then wipe and rinse — 30 minutes.
• Rust marks — sprinkle salt over the mark, rub with half a lemon, then rinse — 15-30 minutes.
• Pink / mildew marks — spray with 3% hydrogen peroxide, leave, scrub lightly, then rinse — 10-15 minutes.
• Soap scum — baking soda paste (1 cup + 2-3 tbsp water) + vinegar spray, then scrub — 10-15 minutes.

Tick-Off Checklist

• Tub material identified before cleaning started
• Loose dirt and hair rinsed away
• Everyday clean done (1/2 cup baking soda + dish soap)
• Soap-scum paste applied and left 10-15 minutes
• Stains treated with the right method from the table above
• No cleaners mixed; acid left on for 30 minutes maximum
• Tub rinsed thoroughly — no cleaner residue left
• Tub wiped dry to prevent water spots
• Drain cover and plug wiped clean
• Taps and overflow plate wiped and polished

Keep It Clean Longer

• Rinse the tub after every use and wipe it dry once a week
• Squeegee or wipe the walls after showers to slow soap-scum build-up
• Fix slow drips — constant dripping causes limescale and rust marks

Looking for more free printables? See all free printables on our Cleaning Resources page.