"...DeeAnna, both Pilar and Roberto's recipes have a LOT of water in them .. 50% or more?? I had to enter 25% lye to get numbers close. We also don't have black olive meat in our soap calc so I'm uncertain how that works into the recipe. Maybe you have some thoughts on that? ..."
6/5/15 edit:
I originally wrote: "...I'm not quite sure I'm following you about the water thing. All I can offer at this point is that a KOH solution requires at least 2.5 parts water to 1 part KOH, and quite a few recipes go 3 parts water to 1 part KOH. KOH needs that much water to dilute properly. Does that seem to address your concern?..."
Please ignore the original version. I was wrong. Here is a corrected explanation: Most KOH soap recipes use more water than NaOH soap recipes. The usual goal is to make a soft, sticky soap paste, not a stiff, dry-feeling gel. To get that paste consistency, I'd use 3 parts water to 1 part KOH (25% solution concentration). Two parts water to 1 part KOH (33% KOH solution concentration) is pretty much the lowest water content I've seen, and that usually forms a firm, dry gel that is more difficult to work with. From the pictures I've seen of beldi, it looks like a soft spreadable paste, so I'd use the 3:1 water:KOH ratio (25% water concentration).
Back to my original post:
As far as the olive oil in the olives, yes, it would increase the superfat some. If your olives come packaged with a nutrition label, that would be the place to start. (My husband doesn't "do" olives, so there's none in the house.)
A fast check with Google: "One cup of olives, about 135 grams, supplies 155 calories of which 130 calories are supplied by fat." At 9 calories per gram of fat, that translates to 15 g of fat per 135 g of olives. For the 200 grams of olives I think Pilar used, the fat in the olives would be 15 g fat * 200 /135 = 22 grams, approx.
If the olives end up being very, very fine bits in the beldi, as it looks like they do, I might assume most or all of that 22 g ends up saponified. If the bits are coarser, I'd guess some of the oil inside the larger bits would not saponify.
Another point, as I think about this -- I'm not sure how much oil might be lost from the olives during the soaking and such. Some? None? You'll have to make some good guesses!