Picture of How to make liquid soap from a bar
By doing a very simple process we will be able to transform our soap bar to liquid soap. This will help us to exploit the strengths and advantages these two states of the material bring to us. On one side the solid state, ideal for storage and transportation of soap. On the other hand the liquid state, perfect for later use, giving us optimal hygienic conditions.


Mediante el sencillo proceso que explico a continuación seremos capaces de transformar nuestras pastillas de jabón a jabón liquido. De esta manera podremos aprovechar las cualidades y ventajas que nos aportan estos dos estados del material. Por un lado el estado sólido, ideal para la conservación y transporte del jabón. Por otro lado el estado liquido, perfecto para su posterior utilización, dándonos unas condiciones higiénicas óptimas.
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Step 1: Required Elements / Elementos necesarios

Picture of Required Elements / Elementos necesarios

Step 2: Weigh / Pesar

Picture of Weigh / Pesar
First, we must weigh the amount of soap we will use. In our case we want to fill a 400 ml dispenser. so we will need approximately 120 grams. of soap. (around 300 gr. of bar soap is needed for each quart of liquid soap).

Then weigh the vessel in wich you will introduce the water later. We zero out our balance (tare button).
We need a quantity of water equivalent to four times the weight of bar soap used.
In our case 120 gr. of soap X 4 = 480gr. of water =  two glasses of water


Primero debemos pesar la cantidad de jabón que vamos a utilizar. En nuestro caso queremos rellenar un dispensador de 400 ml. por lo que necesitaremos aproximadamente unos 120 gr. de jabón. (se calculan unos 300 gr. de jabón en pastilla por cada litro de jabón liquido que queremos obtener).

A continuación pesaremos el vaso en el que posteriormente introduciremos el agua. Ponemos a cero nuestra balanza (botón de tara).
Necesitamos una cantidad de agua equivalente a cuatro veces el peso del jabón en pastilla utilizado.
En nuestro caso 120 gr. de jabón X 4 = 480gr. de agua = dos vasos de agua

MsJan2 years ago
Do remember today most soaps on the shelf are toxic to humans and can cause cancer plus other illnesses. These big companies do not care about our health...they just want our money. Our government does not even make many products list all toxic chemicals in them. We need to wake up and not be brained washed any more. if we stop buying these products than the companies will offer better choices.
One time I did try making a liquid soap but it ended up a slimy mess. I now only make bar soaps.
I just made some liquid soap using the scraps from our Irish Spring soap. It is awesome and so easy to do. I even washed the dinner dishes with what was leftover in the pot. I would suggest trying to keep the same type of soap scraps so you dont get a strange smell oor some kind of weird chemical reaction.
Sorry to say but I use to work in a grocery and Irish Springs was one of the first things I became very ill from. I broke two ribs twice form coughing due to ordors from soaps. Be very careful to the toxic products you use. Becuase now my system has broken down to more chemicals I have to make my own soap which has no smell but is healthier. I also now sell them and give for gifts to help others stay healthy. My kids keep requestiing for me to make more. Remember A Healthy Home Will Have No Smell.
ally-oops2 years ago
I recently made my own cold process soap and made liquid soap from the crumbly bits. Works very nicely! Thanks!
(removed by author or community request)
In compliance with the "be nice" comment policy (which, apparently, you are not aware of), I would only suggest that you type "Pastillas de jabon" in your favourite image search engine. Then you might consider deleting your somewhat "not nice" comment concerning this contributor's Spanish version...if only to comply with the "be nice" comment policy!
Pastillas de jabon.JPG
Trying to help out since I speak the language every day..deleted.
‹‹Pastillas de jabón›› es un uso completamente normal en España. Ellos dicen ‹‹pastillas›› y nosotros decimos ‹‹barras››.

Por cierto (y sin ánimo de polémica) quizás te interesaría saber que en tu página ‹‹jabón›› y ‹‹perfume›› no están escritos correctamente.
luvasu elgati3 years ago
Pastilla, barra, jaboncillo... todo es CASTELLANO, se usa una u otra palabra dependiendo de dónde eres o dónde estás.
ansanma3 years ago
Me ha gustado mucho ver que has hecho el instructable en dos idiomas, yo también lo suelo hacer. ¡Enhorabuena! ;)
Estoy completemente de acuerdo!! Sería muy bien si más personas escribieran en dos (o aún más) idiomas. Felicidades!!
graydog1113 years ago
You can buy 800mL liquid hand soap from They are 2 for $5.75 with free overnight shipping. I just bought 2 to use in my wall mount dispenser. I use them in my shop......really nice. New dispenser costs about $12.00 + free s/h.
Cool idea. Plus I like to see that so many French speakers are reading about how to use soap.
Luziviech3 years ago
You don't have to weigh the pot: The weight-system is based on water: 1L=1kg (@ 4 degree Celsius, but doesnt count as the change is minimal)
raviolikid3 years ago
Thanks for the directions! I've always wondered how to do this.
jonathan143 years ago
Thank you Sir!
ac1D4 years ago
Je crois que tu a écrit ton instructables dans la mauvaise langue?
Agréable, non? Hehe :)
Je pensait aussi que les Instructables devaient être rédigés en anglais, mais non, il n'ya pas de limite de langue ( ). En espagnol en il y en a beaucoup. Malheureusement, j'ai vu peu en français. L'orthographe française est peut être trop difficile (je vous prie d'excuser mes fautes).

J'était certain que sa devais ètre en anglais! Merci pour le lien ;)
Ne vous excusé surtout pas pour vos fautes, je paris que j'en fait plus que vous! Lol ;)
bhisma3 years ago
I used to wonder why so many people say french people are so bad-mannered. Now, I know why.

Deberías preguntarte porqué desde Corneille (Le Cid) a Carmen (Bizet) , Francia ha recurrido a temas españoles para inspirarse.
rustons013 years ago
Nice instructible, some advice for other people. I tried this with glycerin soap and when I let it cool it set back into a solid. Use non-glycering soap for this to work.
Nice ible. Photo's are great and allow someone to follow it without needing a translator. I bet if you translate this over to english you might get featured. Either way good job!