Hi, my way of making soap on the fly is super easy and works great! I make between 1/2 to 1 gallon of 50% lye solution, using aloe vera instead of water as my liquid, and also add silk threads. As long as the 50% solution is tightly capped, no moisture can get in to weaken it, and none can evaporate, it will last and be potent, well, many, many months at least! Since sodium hydroxide id humidstatic in nature, drawing in moisture, as long as it is capped, no problems. I recently made 5 gallons of my favorite recipe up, melting the hard oils and adding the soft oils together to make the 5 gallons. After about 48 hours, it has set up to a very heavy gravy consistency. I simply measure out how many ounces I need for my mold I'm using at that time. If the recipe for that amount of oild calls for, say 8 ounces of lye, I measure out 16 ounces of the premixed 50% lye solution. I slowly add about 1/2 of the lye solution to the oils stirring. I can feel within about 2 minutes the reaction starting to heat up. I then add my room temperature goats milk, yes, I said room temperature goats milk to that to bring the solution down to about 33%. I then add the rest of my lye solution to the batter. I then remove some for swirling different colours. If the base, or the colours in cups start to thicken, I simply add enough room temperature goats milk to bring it back to light/medium trace, and proceed to layer base, then swirl, then a layer of base....etc. I can take as much time as I want this way, and by adding a tablespoon or so of additional goats milk, the total solution strength may end up between 30 and 33%.
I'm going to have my wife video my RTCP demo using RTGM when I do it this Saturday and I'll post it on U-Tube. I'll post the link next week to the video.
Super easy peasy. It tool longer to type this than it does for me to make a 4 pound batch of soap, with a 3 colour swirl!!
Paul :wink: