Answers
How to clean a phone case
Short answer: mild dish soap, warm water, soft cloth or old toothbrush, then air-dry fully before putting the phone back in. Avoid bleach, acetone, and abrasives — they damage finishes and printed artwork.
How do you clean a phone case?
Remove the case from the phone first. Mix a few drops of mild dish soap into warm water, dip a soft cloth or old toothbrush, and gently scrub the inside and outside. Rinse under cool running water, pat dry with a microfiber cloth, and let it air-dry completely (a few hours) before putting the phone back in. That handles 95% of grime — fingerprints, pocket lint, makeup, sunscreen residue.
What should you avoid?
Skip bleach, acetone, nail polish remover, and abrasive cleaners — they can dull the finish, strip printed artwork, or weaken the plastic. Avoid soaking a case with adhesive elements (like card holders or magnetic rings). Don't use a hair dryer on hot to speed drying; heat can warp TPU.
How do you get yellow stains out of a clear case?
You can't, really. Yellowing in clear TPU is a chemical reaction from UV light and skin oils — it's not surface dirt, so cleaning won't reverse it. Soaking in a baking-soda paste can sometimes lighten mild yellowing temporarily, but it always comes back. The honest fix is to replace yellowed clear cases or switch to a printed case that hides discolouration.
Are Miarobi prints safe to clean?
Yes. Miarobi uses UV-cured pigment ink that fuses into the polycarbonate shell, so gentle soap-and-water cleaning won't lift the print. Avoid solvents and abrasive sponges, and the artwork will hold up for the case's full lifespan.