I see some problems with your recipe and some possible attempts to counteract the excess citric acid in the pineapple, but I cannot give you a fix for this soap. Personally, I think it is beyond repair and I will explain why I believe that.
I tried to come up with that recipe using only water and not pineapple pulp in soapmakersfriend
soap calculator & it was not easy to duplicate it, but here goes:
Using 25.3% Lye concentration and -4% SF (negative 4) with 59% NaOH and 41% KOH, I got really close to your formula (but with water only and not the pineapple pulp in place of water). (See image at bottom)
If you planned to offset the citric acid's effect on the lye (which it looks like you must have done), where did you get the numbers for how to figure that out? Just curious. According to DeeAnna's site (
link) "10 g citric acid neutralizes 6.24 g NaOH and 10 g citric acid neutralizes 8.42 g KOH". So you need to know how much citric acid was actually in your pineapple pulp. I found
this link which states that there is 0.6-1.2% acid, of which 87% is actually citric acid (so some math is involved to get the correct range). I won't do that math, but I hope that you did.
The next issue is the huge volume of food pulp you used instead of water. Two issues come immediately to mind:
The first of which is how did you dissolve the lye in the pulp? Did you simply add the lye flakes or granules to the pulp and mix them up really well and how did you verify that all the crystals/granules/flakes were completely dissolved? I can only guess as to how well I'd be able to ascertain 100% dissolution (I don't think I'd really know.)
The second of which is that you used more food product in this recipe than is generally recommended for safe use in lye soap. In the 2019 Soap Challenge Club, put on by Amy Warden, we did a food additivies challenge. The amount of puréed food (not chunks) for safe use in soap is 1 part food to 8 parts oils (or 12% of oil weight). So for 1430 grams of oils, 1:8 would mean you can only use 178. grams of food product (in the form of a purée, not chunks). You used 926 grams of pineapple pulp, which amounts to a whopping 64% of your oil weight, far exceeding the safe usage rate of food in solid soap. Some other sources recommend even less food additives, at only 1 ounce per pound of soap, which equates to 6% of oil weight. Several sources online go with the more conservative 6% amount.
Obviously this soap will always remain soft, but not only that, I predict it will become moldy and spoil as food does over time when left out to open air.
Besides the excessive amount of food in this soap, the amount of KOH is also another reason this soap is never going to become hard soap. That's a lot of KOH to put into a solid soap. Now, I cannot say that if you had made this soap with only water and not with pineapple pulp that it might not have hardened up; maybe it would. I don't make hybrid soap with that much KOH (I usually stick to 95% NaOH to 5%KOH, although others do 90%/10% without problems, depending on the recipe.)
One other question I have is how did you make Hot Pressed Coconut Oil? We don't have many soapmakers here at SMF who actually make their own oils, so that's fairly uncommon in my experience.
Here is the recipe per
soapmakingfriend using only water in case you are interested:
View attachment 67685
Edited to add links to other sources regarding how much food purée to safely add to soap:
https://lovelygreens.com/complete-guide-natural-soap-additives/https://www.soapqueen.com/bath-and-...ricks/how-to-add-purees-to-cold-process-soap/
red palm butter 325g
Hot pressed PKO 409g
