I've made laundry detergent powder as an experiment and feedback so far is that it's okay but it could be more bubbly and the soap chunks be more dissolve-y.
My recipe is this:
420 grams of diy soap (1% superfat, 65% palm oil, 35% coco oil, hot process, used only NaOH as a lye)
1 840 g borax
1...