I've been talking about soap making enough that it finally gets a post. There are plenty of online tutorials for how to make cold process soap, so I'm not going to repeat the basic information. I will, however, localise it a bit. There don't seem to be too many artisanal cold process soap makers in this part of the world (or, they don't have much of an online presence - or, I just haven't come across them yet); this surprises me, given that you can find boereseep at so many padstaals across the country.
I already wrote about where to find
lye in Joburg; I'd imagine in rural areas, finding pure caustic soda is somewhat easier.
Some discoveries I've made on oils:
Coconut oil is tricky to get. It really does improve the quality of soap dramatically, so if you're tempted to skimp on it because it's hard to find or expensive...think twice. The exception is if you want to render your own tallow, which makes a reasonable substitute (though an even better compliment). If I didn't live in a flat in Yeoville, I'd do this more often - but without a place to cook outside and a massive freezer, it's not really worth the work and mess. So, I buy coconut oil from
Windrose. I like that you can order online conveniently, in a range of quantities; if anyone has other suppliers to recommend (or wants to split up super big bulk orders), shout.
Sunflower seed oil is also tricky. It's a very common cooking oil here, readily available, inexpensive - and not the best for soap making. It's very good if kept strictly at under 10% of your base oils; but any more than that, and the soap tends to be too soft (and rumour has it will spoil, though I've never had that happen before). The exception is if you're making detergent, or laundry soap; a useful thing with used sunflower seed oil.
Most other good base oils are readily available and not terribly expensive. Palm oil is everywhere and used for everything. Ditto with soybean and canola, though they tend to be heavily genetically modified. Olive oil's predictably expensive, but available in bulk without much hassle; getting pomace is harder in Joburg, but can be found by perusing joints that press their own oil in the Western Cape (if anyone knows of good pomace suppliers in Joburg, please let me know). There are lots of fabulous specialty oils, like marula, avocado, and macadamia, that I always try and look for when I'm in the right parts of the country; I'm always looking around for recommendations if people know of great sources! But these are generally best as super-fatting oils, rather than bases.
Used cooking oil is fabulous for making run of the mill soaps and detergents. I can easily get used palm oil from local restaurants; I just strain it, add some fresh coconut, soybean, and canola oil to it for a laundry soap batch, and it works brilliantly. You can make soap with bacon grease and there's no smell at all; used cooking oil's just fine. It doesn't make A grade soap, but is perfect for general household purposes.
Some discoveries on soap molds:
I'm still looking for someone to make me the perfect wooden soap mold :) In the meantime, however, there are lots of good options. 1 liter juice (or long life milk) cartons work great; they're just the right size. I haven't managed to find an ideal plastic ware size/ shape. There seem to be more people making melt and pour soap than cold process in Joburg, and as a result, getting those plastic or silicon fancy shaped soap molds is relatively easy; however, I don't like them much, and would rather use a shoe box.