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Mrs. Stewart's Liquid Bluing - Laundry Guide Product Review

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Mrs. Stewart's Liquid Bluing - Laundry Guide Product Review

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The Bottom Line

Mrs. Stewart's Laundry Bluing is an excellent product for whitening clothes. It is simple to use and safer for fabrics and the environment than chlorine bleach.
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  • Whitens white clothes and linens.
  • Simple to use.
  • Non-toxic and biodegradable.


  • Bottle does not contain post-consumer recycled plastic.


  • Concentrated bluing formula used to whiten white clothing and linens.
  • Add to washer during wash or rinse cycle.
  • Available in most grocery stores in U.S. and Canada.

Guide Review - Mrs. Stewart's Liquid Bluing - Laundry Guide Product Review

Laundry bluing is used to make white clothes look whiter and brighter. Mrs. Stewart's Liquid Bluing has been doing just that since the early 1870s. What began is a home mixed formula and became a corporation in 1883 is now a leading bluing distributor. It is manufactured in Bloomington, Minnesota using basically the original formula.

Bluing was used throughout much of the 19th and 20th centuries by homemakers and laundresses to give brightness to white clothes. Bluing does not clean clothes or remove stains. It simply adds a microscopic blue tint to white clothes that increased the light reflection off the fabric making it appear whiter. Many people turned to chlorine bleach or other additives for whitening but bluing is superior due to its gentleness on clothing and the environment.

While Mrs. Stewart's Bluing does not have an ingredients list on the bottle label, on their website the ingredients are explained as: "A very fine blue iron powder suspended in water ( a "colloidal suspension"). We add a nontoxic amount of a pH balancer and a biocide to prevent the buildup of algae and bacteria. Mrs. Stewart's Bluing is nontoxic, biodegradable, non-hazardous and environmentally friendly." The product can be found in most grocery stores or can be ordered online.

I gave Mrs. Stewart's bluing a test on a load of white undershirts. They came out looking brighter and whiter, enough so that my son even noticed. It is important to follow the bottle directions carefully and dilute the concentrated formula in a quart or more of water before adding to the washer. Never, use with chlorine bleach or pour directly onto clothing.

Specific questions? Just ask here.

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Disclosure: Review samples were provided by the manufacturer. For more information, please see our Ethics Policy.
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