Foolproof tip for turning 1 bar of soap into 3 liters of liquid laundry detergent | April 5, 2025

Until recently, conventional soaps found in supermarkets were the only option for doing laundry, strictly by hand. Over time and with the arrival of new technologies, such as the washing machine, their use has increasingly declined, but they have not completely disappeared.

Some people still use bar soaps today, especially Marseille soaps, because they are more effective at treating localized stains. In this article, we explain how to transform a bar of soap into 3 liters of liquid detergent.

Liquid detergent is not only recommended to protect your hands, but also to avoid leaving residue on your laundry and because its use with the washing machine is more practical and versatile. Its only drawback is its cost, which can sometimes be very high.

You need:

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