Oxalic Acid Feldspar Cleanser for Heavy Shower Glass Limescale and Soap Scum

★ 4.0 Rex score · Bathroom · Tempered glass and chrome-plated brass · Viral claim: "applying bar keepers friend powder or cleanser paste to cloudy glass shower doors dissolves etched mineral spots and cut"

Bar Keepers Friend paste on cloudy shower glass Scum gone Oxalic acid plus a fine abrasive strips scale; etched glass stays etched
Does it clean? 5/ 5
Is it safe? 3/ 5

Rex says

Rex Sterling, Ph.D. · Head of R&D, Clean Report · Meet Rex

"Applying Bar Keepers Friend powder or cleanser paste to cloudy glass shower doors dissolves etched mineral spots and cuts through heavy soap scum in 2 minutes."

The science

  1. Acid reacts with some minerals

    Oxalic acid can help remove mineral and rust deposits; the cleanser's abrasive fraction can also assist scrubbing.

  2. Etching cannot be dissolved away

    Cloudiness caused by permanent glass etching will not be reversed by a cleaner. The claim must distinguish deposits from damaged glass.

  3. Protect nearby materials

    Follow the cleanser label for glass, rinse thoroughly, and keep acid away from natural stone and sensitive finishes.

Do this instead

Do not use near natural stone; rinse within 2 minutes; wear chemical-resistant gloves.

Where this came from

From the Clean Report hacks library

GoCleanCo / BleachPrayLove

YouTube / GoCleanCo Community post · "Restoring Cloudy Shower Glass" · Published May 18, 2025 · Retrieved Oct 30, 2026

Origin

"Applying Bar Keepers Friend powder or cleanser paste to cloudy glass shower doors dissolves etched mineral spots and cuts through heavy soap scum in 2 minutes."

youtube.com/watch?v=BKF_Shower_DeepClean
Needs re-check

Draft for admin review. Verdict and scores follow Rex's assessment of the library claim.

← All hacks