Thank for the input everyone!!
As far as that preservative goes, his whole thing is he doesn't use anything unnatural in his soaps. I just always read using fresh fruits and veggies is a bad idea in soap, especially if you're selling them which he is. "Even if it looks like its ok, you don't really know it hasn't spoiled unless you get it lab tested." Thats what I read many people say.
So what is the worry that it might went bad if it looks and smells ok? Why would it need lab tested?
This is a serious question, not trying to be pesty.
I mean we are not going to eat the soap LOL
Soap is what we use to clean dirty old nasty dishes etc... with. So if Carrots were to rot in our favorite bowl in the fridge, what do we do? We wash that bowl with soap.
If we get those rotten carrots on our hands, we wash with soap.
If we spill the rotten carrots on our clothes, we wash them with soap.
Etc.. etc..
So my thought is if the soap does not look or smell bad I see no reason to fear it, it's the same soap I'd use to wash away food that did spoil, but I could be wrong which is why I am asking what the worry is?
Actually I had not thought of using juice or pulp in my soap, I will have to study on that now! I do have a fancy juicer that makes great juice and very fine pulp, like mush! I bought it at GoodWill for $5 and when I looked it up I found it's a $100+ machine! Only reason I bought it was it was $5, but now that I have it I use it allot as I do like juices at times. I make allot of carrot juice now so end up with carrot pulp, can only use so much pulp though in my cooking, but it is a nice filler and lots of fiber.
Going to make some Carrot pasta, see what happens, using my $5 or $10 thrift store Pasta Maker.
I guess I can make Carrot soap to match the pasta. LOL