How to Whiten Yellowed Pillowcases and Gray Towels Before Guests
Oxygen Bleach Soak
Fill a bucket with 1 gallon of the hottest tap water first, add 1/2 cup oxygen bleach powder and stir a full 60 seconds. Use it the same day. Anything not pure white gets a 30 minute seam test. Gloves on, submerge the whites and push the air out. Soak 4 hours for dinginess, overnight for pillowcases yellow for years, stirring once or twice. Wring out, run a normal wash, dry in the sun if you can. No wool or silk.
You need
- 1 gallon hot water (3.8 L), as hot as the tap runs
- 1/2 cup oxygen bleach powder, the sodium percarbonate kind from the laundry aisle
- 1 bucket, a clean sink, or a clean bathtub
- 1 stir stick
- Gloves
Mix it
- Fill the bucket with the hot water first. Hot is not a suggestion. Oxygen bleach needs heat to break down into peroxide, and in cold water it sits there inert all night.
- Add the oxygen bleach powder and stir a full 60 seconds until you cannot feel grit on the bottom.
- Use it the same day. Once dissolved it spends itself whether there is laundry in the bucket or not, so yesterday's batch is plain water today.
Use it
- Colorfast test anything that is not pure white. Dab the solution on an inside seam, wait thirty minutes, and check for fading before the item goes in.
- Wear the gloves and submerge the whites completely. Push the air out of towels so they actually sink.
- Soak four hours for general dinginess, overnight for pillowcases and collars that have been yellow for years.
- Stir once or twice if you walk past. Fabric that sits folded against itself comes out blotchy.
- Wring the items out and run a normal wash with your regular detergent, nothing else added.
- Dry in the sun if you can. Sunlight is the strongest whitener you own and it costs nothing.
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