Goggles- check, mask- check, rubber gloves- check…….Yes, we did look like a couple of nerds about to embark on a scientific experiment. By this stage we had our equipment to hand and our ingredients organised. Our soap saga was ready to take to the next level – the actual making of the soap. The process involves chemicals and (potentially hazardous) reactions so, as you can see, we togged out accordingly. Here’s how we proceeded:
- After decking the kitchen with several layers of newspaper we read our instructions thoroughly, and once more for good luck…
- We decided to use an infusion of herbs instead of pure water so first off, we poured boiled, filtered water over fresh herbs and and left it to cool before straining.
- Using a digital scales we weighed out all our ingredients, bar the caustic soda.
- Then we put on our protective gear (amid giggles and snorts).
The “scary” bit……
- Placing our small designated glass bowl on the digital scales we carefully measured the caustic soda and set it safely to one side.
- We placed our larger designated glass bowl on the scales and poured in the required amount of water (which was actually a herbal infusion.)
- After that we moved both vessels to the sink, close to a large open window (ventilation is important) and as one of us very carefully poured the caustic soda into the water* the other gently stirred the mixture with a hand whisk. We both held our breaths during this step to avoid inhaling any fumes. I’m pretty sure our faces went a funny colour…..*CAUTION: NEVER ADD THE WATER TO THE CAUSTIC SODA – IT COULD HAVE EXPLOSIVE CONSEQUENCES…
- When all was combined we left the bowl standing in a safe position in front of the open window to cool a little while we finally gasped for air.
- The bain-marie was then brought to the boil, using a large saucepan of water and an equally large pyrex bowl, to melt the hard fats. The liquid oils were added to the melted fats/butters. This was also left to cool down a bit as the temperature of the lye and the oils must both be within a certain range- between 40°C and 50°C .
- We used one thermometer to read the temperature of both bowls making sure to wipe it well after dipping in the lye- we were still wearing our gloves and being very cautious. On reflection – 2 thermometers would be handier….
- After about 5-10 minutes we had reached the correct temperatures and it was time to carefully pour the lye into the oils. This is where the stick blender comes in, making sure to use it as low as possible in the pan to avoid any splattering.
- We blended until the mixture became the consistency of custard. What is known as “trace” occurs at this point. When you lift the switched-off blender out of the mixture and run it across the surface it should leave a line or trace for a few seconds before the surface becomes smooth again. Time to stop blending when this happens.
The final stage
- This is the time to add the smelly, scrubby elements. It’s important to work fairly quickly to avoid the mixture becoming too thick to pour. We swiftly mixed in the essential oils (and for one batch, our poppy seeds) stirring the mixture well.
- Next up, the whole lot was poured into our moulds. We had a mixture of plastic moulds. Some were specifically for soap making – one large tray for a slab-like block that would require cutting (not best choice) and another with individual sections for complete bars (good choice)- and then some small takeaway containers which had lids (perfectly adequate- lids a plus). We later made a mental note that silicon moulds would be the easiest to work with.
- The moulds were covered with cardboard (plastic lids for the takeaway boxes) and left in a warm place for 24 hours before removing them from their moulds. We cut the larger slabs of soap into bars (no need if you have dedicated moulds) and left all the soap to air. We did have some difficulty removing the large blocks from their moulds, even after 48 hours and had to cut the soap in its container first. Leaving it in the fridge for a spell can help with loosen the soap- if your container is small enough to fit. We then placed the soap bars on cooling racks in a dry dust-free spot to air for 4 weeks. The soap needs this time to cure.We’ve been using the soap for a few months now and find it lovely and creamy with a great lather. The lavender version is my favourite.
And that, is how we made our own soap! I hope I have demystified the process enough for you to give it a go. I imagine we will be making the ritual a bi-annual event so that we have enough for our familes and some for gifts. Have you made any interesting soaps? I would love to hear your recipes and stories.