Second pull through notes below (I'm only going to add thoughts/pics during the early part of this learning curve while I have thoughts or experiences which I think might be helpful, there won't be wordy updates on future batches in perpetuity!)
Still really fun to make and cut. I did not realize that I picked almost the same colors, I really just replaced the black with purple, next time I will do something completely different. I did have issues with spotting of some kind, I’m not sure what it is.
I used the PVC pipe I used in the first round of soaps, plus a quart milk container to do the square soaps, and squeezed the batter left in the bags/liners to the squeezy bottles into cavity molds. The issues are worst/most obvious with the cavity soaps, which are clearly pitted and spotted. The ones in the bigger molds are not as bad, but if you look closely you can see spots which look like big stearic spots or unmelted butters (I don’t think it’s either, though, because I heated the oils to 182F by mistake the night before, then heated until clear again before mixing with masterbatch lye/extra liquid and pouring.)
Do you guys think this could this be just overheating? Same formula and process as last time. The only real deviation is that after I put them in the oven to CPOP I pulled them out at one point to see if they were gelling, then turned the oven back on to warm (170F), meant to turn it off in a couple of minutes, and forgot it for about 30 ms. Also, the cavity soaps (less mass/more surface area) and the square ones (which were in the thin/paper milk container and may have been more insulated because I wrapped it in kitchen towels and put it in a baking dish to stand upright when CPOPing because I didn’t want it to fall over) were most likely to overheat and fared worst in this respect.
@AliOop and
@Mobjack Bay, you master diagnosticians, any thoughts?
One issue this brings up is the mold medium. It sort of reinforces my conclusion that PVC molds (at least the high temp PVC used to make the Wild Plantanica molds) seem to be pretty good about not overheating here, despite research indicating that (regular) PVC molds were likely to overheat. Since the other molds in this batch were thin silicone cavity molds and a paper dairy container, I wasn't expecting too much, but I wonder what would have happened with the thick silicone column molds that are often used for this technique. I found a cheap ($25.00) silicone column mold on Amazon which come with discs/rods/everything necessary, and am tempted to buy it to try it out. Although almost all the discs in the Amazon set have center pull placement, which I think makes it harder to pour well, one of the things that is good about the WP set (all side pull discs).
https://www.amazon.com/dp/B0C4KKPQ2J?psc=1&ref=ppx_yo2ov_dt_b_product_details
One thought on these generally, I think the molds/discs with the most negative/open space make the nicest, cleanest designs. I’m attaching a picture of three of the four soaps I’ve made so far with their discs to show the connection between two since it's hard to know from just looking at the discs or the soaps separately. One of the soap/disc pairs is missing because I didn’t take a picture of the first round with their discs and couldn’t figure out which disc I used with that bar.
The first pic of the cavity soaps and the worst of the loaf mold soaps to show the pitting/spotting issues. The second pic is of the soaps next to their discs so that the disc designs and the results are a little more clear. The third pic is of all the rest of the soaps in the second batch.