Before ANYthing is done, I enter the recipe into
thesage.com to get the ratio of oils and lye solution correct. The first few photos are the same for all soap.
All the oils have been weighed and then put into the pot to melt.

Here is the electronic scale I use, with all of the 'extra' ingredients used for laundry soap already ready and waiting. The NaOH or lye 'crystals' I wait until THE LAST minute to ready as any sort of living tissue or liquid and NaOH do NOT react well, unless you like having your skin burn and then melt off... The Mr.Yuk stickers are there for my childrens' benefit :)

This is baking soda and borax sifted. Also the thermometer (dedicated to soap making only) that is stainless steel, NOT made from aluminum as that'd ruin the soap!

When I mix the lye slowly into the water, I do it outside, whilst wearing goggles, rubber gloves, closed toe shoes and long pants and sleeves, also my hair is tied back. I do this outside to prevent any inhalation of the terribly noxious fumes. The temperature of the water will climb to about 150 degrees F or more!
When mixing the two, always always ALWAYS add the NaOH to the water slowly (remember: snow on the lake). If the water is added to the NaOH, an extrememly caustic volcanoe would result. Either way, do not breathe, touch or look too closely as even the fumes are hazardous.
So the lye solution (NaOH and water) is at temperature. This is where I drizzle it into the oils that are also at the correct temperature. If the temp is too cool, the lye might not incorporate or mix with the oils completely. Then the soap would burn the skin. Too hot and it will take too long to reach trace (more about that later).
See how the clear oils have become creamy, like pudding. The temperature will rise a bit as the chemistry reaction follows though. Stirring by hand can sometimes take over an hour to reach trace. I have invested in a stick blender (heard that thrift shops or SalArmy is a great place to get them for about $2-4. This particular item needs to be DEDICATED to soap making ONLY). AFter about five minutes with a stick blender OR sometimes upwards to two hours by hand stirring, the consistency of the soap will be thick enough that when the spoon is lifted , the drippings rest or remain ON the surface of the soap for a few seconds. This is trace. Now is when any scents or other additives would be added. Quick five or ten count stir, then pour.
The entire pot is poured into whatever container you are using that is plastic or wood or glass. Do not worry about the actual shape as the soap will be scooped out and ten liquidfied after twenty-four hours.


I place a plastic wrap directly on the top of the soap if I am making bar soap. For this I just put a lid on it to keep the temperature up. Next, I wrap the entire container in a towel to also help keep the temperature up- this will help the reaction to completely incorporate the oils and lye solution over the next 24 hours.

Now after 24 hours, the soap is still very soft, this type moreso than usual. If I were to make bar soap, I would cut it an then leave it to dry or cure. But for laundry soap, it is nearly done, but not quite!
So the soap is scooped back into the cleaned large stainless steel pot from yesterday. Water and vinegar is added while it is heated slowly on the stovetop. Looks like some terrible oatmeal, eh?

Now a bit later and it is looking a bit smoother.

Now it is all done! The soap has completely melted. I pour this into my clean kitty litter plastic container that a nice friend gave me for such a purpose. It will solidify a bit, but it is really more like a gel. It melts well in COLD water, if needed, and only half of this soap is needed when compared to the commercial liquid detergent to clean a load of laundry. My husband loves that no fabric softener is required in the washer or the drier either!

The only drawback that I can see is that the wide elastics of clothes are not as 'elasticy' after this laundry soap is used for a few months... I doubled the entire recipe this time. Next time, I will quadruple it. I should get at least six months out of that size batch laundry soap! :)