OK, so I'm old, gimpy & sometimes cranky... So whenever I find a way to "cheat" without affecting the quality of my soap, I take full advantage.
#1 = Dump it back into your cookpot. If it's still soft or even if almost cheesy, do NOT add any water. I don't have a crockpot & can't get one down here, so I use a stainless pot with a 1/2" thick bottom directly over the tiniest gas flame I can coax the stove to put out. Lid on, tape over the steam hole, if any. As it melts, get it mixed evenly, then stir occasionally, until it looks like a good "gel phase."
#2 = Once I get to an obvious "gel phase," or entering a good gel, I'll take off the heat, give a good stir, cool it down a bit, add any other colorant or scent or algae or whatever... Then pour into my moulds. You can even do ITP swirl, just KEEP IT SIMPLE. I like putting this into a slab mould, then dripping infused colorants over the top & swirling with a skewer... HP doesn't have to be ugly. Then, just cover with cardboard, insulate w/towel if it's cold. (I put mine on the stairs, away from the FP.) In the morning, ya got a pretty cool slab of soap. Easy. You don't have to cook it "all the way."
If it's kinda basically solid, do this:
#1 - Gloves on, I use a veggie knife & just shave the bar down to thin flakes. Do it watching TV or convo with a GF. To the shavings, you can add about ONE tablespoon of coconut milk or water after you've shaved it up... Or, if it's like a 5% SF, you can add a tablespoon or 2 of Olive oil. Again, lowest possible flame or low on crockpot.
#2 - Make a cuppa coffee/tea & put on a facial masque... Moisturize yer hair... GIVE IT TIME. Don't peek & let out valuable steam. Don't think of stirring if it's not already nice & "gel=-like" translucent all around the sides. For a 4-quart pot full of shavings, it takes mine about 45 min. to begin to show melt... Make sure there's steam inside the lid. Do NOT try to make it happen faster.
#3 = When you can see it's melting well, with spatula or spoon, give a good stir... I stir when it looks about 50/50 to me. While the lid's off, decide if you want a bit more water or oil... [Remember - LESS is MORE. You can put it in, but ya can't take it back out. Result of too much = LONGER cure times, some deformed soaps due to uneven/rapid evaporation.]
#4 - When thick, but evenly melted, mix well, take off heat & you can add whatever scent when the temps down around 130F... Any lower & soap gets thick & gloppy. Patchouli is one of my faves for HP, any of the pines, cypress, juniper & some heavy florals like jasmine or ylang-ylang work well. These can handle 150F or there abouts. Mix with spatula until incorporated, then blop into your log mould or slab. This is fully processed HP soap now. But you got to sit and relax instead of stirring down expanding soap, etc.
I'm not LAZY, but I just like to work smarter, not harder.
That said, I enjoy the soaps I do the old HP way, and I'm having a BLAST learning to do pixel paintings in CP soaps.
Best of both worlds.
I've only thrown out 2 batches of soap in my life.