caustic soda? Where do you get yours?
Posted: Sun Aug 22, 2010 5:58 pm
I'm wanting to have a go at soap making, I'm looking for caustic soda and I'm wondering if you order it specially from a soap ingredient supplier or if it's possible to use the stuff you buy for clearing drains. We have a small tub of that under the sink but I'm not sure if it's the same 'grade' or might have any other additives in there so I'd be scared to use it. So what do you use?