How can I make fast dissolving pieces of bar soap for single use?

SoapMakingForum

Help Support SoapMakingForum:

rncchapman

New Member
Joined
Feb 27, 2013
Messages
3
Reaction score
0
Hi all!

I'm a bit of a soap making virgin and am currently having a go myself for the first few times!

I am currently doing a project where I need to make small pieces of bar soap that can be dissolved quickly in a single use, no larger than smarties. I wondering if you could take a few minutes to help me with a few questions!

How can I make fast dissolving pieces of bar soap? Current bar soaps in stores are designed to last a long time and small pieces when broken off take a long time to dissolve when used also. How can I speed up the dissolving process whilst washing your hands?

I have made soap with this cold process kit http://www.amazon.co.uk/gp/product/B004AMLT0O/?tag=skimlinks_replacement-20 and the same thing has happened, hard soap that takes a long time to dissolve!

How can the contents of the soap be altered to produce fast dissolving, single use pieces of bar soap?

Any light that can be shed on this would be super helpful!

Many Thanks,

Richard
 
Last edited by a moderator:

rncchapman

New Member
Joined
Feb 27, 2013
Messages
3
Reaction score
0
Thanks lsg! However I was hoping to produce slightly thicker pieces of soap, as I was hoping to produce a way to dispense them from a dispenser eventually. So essentially the pieces would be small coin sized, hard to the touch (not overly) yet dissolved quickly when put under water and washed between the hands. Is there any way of doing this? Any more thoughts would really help out!
 

Genny

Well-Known Member
Joined
Oct 21, 2010
Messages
3,746
Reaction score
936
Location
NW Wisconsin
Making the soap smaller would make it dissolve faster. Also, I can't tell what exactly is in the kit you used, but it looks like there are quite a bit of butters. Hard butters & solid oils will make your soap harder. So you'd want to use softer oils. Adding vegetable glycerin to CP soap will make it softer as well and it dissolves easier, too.

The drawback of making a softer soap that dissolves faster is that it will take a lot longer to get hard enough to unmold.
 

rncchapman

New Member
Joined
Feb 27, 2013
Messages
3
Reaction score
0
Hi Genny, the kit I used had shae butter and coconut oil as well as vegetable oil. Do you think If I remove the coconut oil and use less shae butter it could produce some better results for single use fast dissolving pieces? I'm not too fussed about how long it takes to harden as long as we get there eventually!
 

AlchemyandAshes

Well-Known Member
Joined
Jul 12, 2012
Messages
1,237
Reaction score
782
Lots of soft oils may help them dissolve quicker, but also may make them hard to "dispense". Stay away from Palm Oil or Tallow - super hard bars. A little bit of Coconut Oil would help to form them, and as long as you don't use too much (over 20%) it should still dissolve quickly. Grapeseed Oil makes an incredibly soft soap, which would dissolve very quickly, but can also go rancid quickly, so you would want to add some Tocopherols and Rosemary Oleoresin Extract or some other preservative/antioxidant combo to the oil before soaping it to keep it from going rancid. Many of the soft oils have a shorter shelf life, so you would want to do the same with any of them.
If I were you, I would mess around on SoapCalc with some oil combinations, maybe something like Apricot Kernel 75%/Castor 5%/Coconut Oil 20% (I'm just throwing that out there...never soaped that formula), until you get a desired level of hardness (lower) and lather (higher). Warning: It's probably going to be hard to get a soft dissolvable soap with good lather that isn't prone to DOS.
 

melstan775

Well-Known Member
Joined
Jan 5, 2013
Messages
2,101
Reaction score
1,151
Location
Reno, NV
how small do you want them? If by smarties you literally mean the size of hole-punch, that is way to small to get any kind of lather off of. I've tried with slivers bigger and they still don't work. I would go with the flat idea, something that will fit in the palm of a hand - dipped papers and rose petals, some people even sell julian cut soap and soap peeled in small strips with a peeler for this purpose.
 

hoegarden

Well-Known Member
Joined
Oct 21, 2012
Messages
381
Reaction score
116
Now I know what the blade on my soap cutter is for. I have been think why is there a need to put a blade there.
 

gratia

Well-Known Member
Joined
Jan 12, 2013
Messages
80
Reaction score
31
Location
Ramona
I have tried with CP and let me tell you, I had one hell of a time doing this. I soaped to a super thin trace and the soap got hard pretty darn fast. Not pretty!

IMG_20121218_085632.jpg
 

DeeAnna

Well-Known Member
Joined
Feb 20, 2013
Messages
12,439
Reaction score
17,083
Location
Northeast Iowa, USA
So many ideas from that website! Wow!
Yup, I think so too. Nizzy's stuff is pretty neat, and I like how he (I think Nizzy is a he, anyway) designs his molds and other soaper's tools.

I will mention that a woodworker's plane, if you can borrow one from the woodworker in the family, will work nicely as a soap plane, although a woodworker's plane won't have as wide a cutter as Nizzy's soap plane has.

I tried an old fashioned sauerkraut cutter the other day. If it was tuned up properly, I could see how it could work very well. Or a mandoline cutter .... hmmm, so many ideas, so little time! :mrgreen:
 

ZandarKoad

Well-Known Member
Joined
Jan 26, 2013
Messages
98
Reaction score
69
I have tried with CP and let me tell you, I had one hell of a time doing this. I soaped to a super thin trace and the soap got hard pretty darn fast. Not pretty!
If you're trying to work with soap that has a long trace time, use extra virgin olive oil. I use around 60% or so, and it takes a full 2 to 3 hours to reach a light trace. If you wait another hour or two, it will probably be just the right consistency for piping, or other applications. You'll have all the time in the world to work with it.
 

Second Impression

Well-Known Member
Joined
Jan 8, 2013
Messages
152
Reaction score
132
I wonder if whipped soap would work? I've never made it or used it but from the one tutorial I read, it comes out less dense than CP. It can be piped into any design you want so you could easily meet the dispenser requirement. Otherwise I would vote with the dissolving paper crowd :)
 

Latest posts

Top