Do they contain bleach?

They work by giving a very faint blue tinge to your wash, which removes the yellowish tint that a white wash can sometimes get. Having said this, I don't know if they do contain bleach, but they don't have a bleaching effect, anyway. As they do tint washing blue, they should be used only in very small quantities, I find less than a quarter of one block is enough for an average wash.

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Reckitts Crown Blue Squares ~ 4 Piece Pack

Product ID: 177030517

Details

Brand
Reckitt's
Item form
Pac
Material Type Free
Dye Free
Material feature
No dyes no and
Number of items
4
Product benefits
Whitening

📏14g tablet, easy dose

🧼No dyes or bleach formula

❄️Works in hot & cold water

Description

✨ Elevate your laundry game with timeless brilliance! ✨

GENTLE YET POWERFUL - No dyes or bleach means safe for all your fabrics and skin.
SPARKLING WHITES EVERY TIME - Keep your whites dazzling without harsh chemicals.
COLD OR HOT ALWAYS EFFECTIVE - Versatile use in any water temperature for ultimate convenience.
ECO FRIENDLY CLASSIC PACKAGING - Wrapped in vintage-style paper, no plastic waste here.
DELAY YELLOWING BOOST BRIGHTNESS - Extend the life of your whites and colors with every wash.

Reckitts Crown Blue Squares are 14g tablets designed to keep white fabrics sparkling and colors bright without using dyes or bleach. Effective in both hot and cold water, these eco-friendly, traditionally wrapped tablets help delay yellowing and maintain fabric brightness, making them a safe and versatile choice for hand washing and spot cleaning.

Specifications

ASIN	B00BN090GQ
Benefits	Whitening, Versatile Usage
Best Sellers Rank	283,630 in Fashion ( See Top 100 in Fashion ) 887 in Men's Athletic Socks
Brand	Reckitt's
Brand Name	Reckitt's
Customer Reviews	4.3 out of 5 stars 143 Reviews
Formulation Type	Regular
Item Form	Pac
Item form	Pac
Material Features	No dyes, no bleach, and traditional paper packaging
Material Type Free	Dye Free
Material feature	No dyes, no bleach, and traditional paper packaging
Number of Items	4
Part Number	unknown
Scent	Unscented
Specific Uses For Product	Hand wash, spot clean
Unit Count	4.0 count
Unit count	4.0 count

Reviews

A**R

Great product.

Have used this product for years, makes whites if every fabric look dazzlingly white.

30.06.2022

J**Y

Old fashioned but leaves whites sparkling white

I was delighted to find that this product is still available. Works so well on brightening white laundry

1.10.2023

S**S

Blue bags for whitening

Ideal for net curtains very pleased so pleased I8 found them

10.04.2024

A**R

Traditional and best

If you like blue-ing your laundry in the traditonal way, this is very good. I wrap up a quarter of a cube in a bit of cloth, then put that in the machine for the rinse cycle. I find I only need a quarter cube for the average washing-machine load (you can over-blue it), so it last for quite a while.

17.05.2021

P**S

Using this for years

Very good for washing whites and other domestic purposes!

6.02.2024

A**S

Blue from years ago

this product was good then and is good now

13.09.2021

R**N

CrP

Not very good

15.10.2023

M**E

Not used yet

Hope they do what they did when I use to use the blu bag

2.10.2021

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