Monday, February 29, 2016

Vortex Swirl Soap

After making soap for 5 years I got bored and unmotivated as I tried most of the techniques that interested me.  I used to soap at least once a week sometimes more.  But I haven't been doing much since the year end holiday season.  One night I decided to force myself to make a small batch just to kick start the momentum.  I didn't know what I want to do, sort of into the going with the flow mood.  It's usually the last minute spontaneous decision after seeing how fast the soap batter moves.  Since the batter wasn't moving too fast I decided to pour ITP (in the pot swirl) style into the mold at random spots.  The next natural reaction is to spin the mold to create some kind of pattern.

Spin swirl has been circulating our soap making communities for a while last year, got pretty popular at one time.  Spin swirl is made by literally spinning the mold at its center axis with or without the help of a lazy Susan.  The unique pattern is created by what the physics called the centrifugal force.  Centrifugal force is an outward force directed away from the axis of rotation in a rotating reference frame.  Ok, plain English please!  It's basically saying when rotating the object(s) at whatever defined perimeter's center axis all the objects in that perimeter will be thrown in a rotating outward direction by the centrifugal force.  Apply that in making spin swirl soap it means the batter is being thrown outward in a circular rotating motion in the mold, the further away the stronger force the bigger swirl.  The result of that is usually a very well marbled outside perimeter swirl pattern but the center stayed still with no movement at all.  It's like a tornado, nothing spins at the very center of the tornado; or think of it as a hurricane, the eye of a hurricane is actually very peaceful.
Watch this short video made by SoapQueen spinning the slab mold on a lazy Susan: Psychedelic Spin Swirl Cold Process Tutorial

Anyway, I had tried to modify the spin swirl last year to find a way to get some swirling pattern closer to the center, see my previous blog post: Modified Spin Swirl  I decided to try something else this time.  Instead of using centrifugal force, I used the concept of centripetal force.  Is it confusing?  Most of the people think centrifugal and centripetal forces are the same.  They are related, but not the same, no, or else why would there be 2 different words, right?

So centripetal force is a force that makes object(s) follow circular path.  What does that translate into making soap?  I simply held my slab mold as it's a gigantic pen (use your imagination) and drew circle after circle on my counter top.  In other words, instead of keeping the mold steady and spin it at its center axis, I use the whole mold to draw big circles (ok it might have been ovals because I'm just human, LOL).  Do you see the subtle differences now?

Sunday, February 7, 2016

Castor Oil Soap Experiments Part 1 of 3

Most of the soaping book and online information recommend using between 5-10% castor oil in soap recipes to boost bubble.  It's said that castor oil contributes to lather power of soap.  However, more recent studies show that when making 100% castor oil soap the soap has very little to none lather.  Shocked?!  I was when I first read it!  So what is the truth about castor oil in soap?  What exactly does it do in a bar of soap?  Here are some facts we know about castor oil in soap:
  1. According to wikipedia 85-95% of the fatty acid in castor oil is Ricinoleic with the remaining spread across Oleic and Linoleic.  This fatty acid profile is unique and none like others!
  2. Recipes using high percentage castor oil tend to trace faster.
  3. Soap made with high percentage castor oil tends to be softer.
  4. Soap made with high percentage castor oil tends to melt faster.

Now the million dollar question is, if castor oil really boost bubble in soap, why doesn't the 100% castor soap lather at all?  On the other hand, if castor oil does not boost bubble in soap, why would all information suggest that?  And if castor oil is not used to boost lather in soap what do we use it in our recipes for?  To answer all these mysteries I decided to do a little scientific experiment of my own.

I simply just created a simple 3-oil recipe that takes up 75% of the oil weight with the remaining 25% being the variables to play with combination with and without castor oil.

  • Soap #1: coconut oil 20%  palm oil 20%  olive oil 35%  castor oil 25%
  • Soap #2: coconut oil 20%  palm oil 20%  olive oil 35%  avocado oil 15%  cocoa butter 10%
  • Soap 3: coconut oil 20%  palm oil 20%  olive oil 35%  hazelnut oil 15%  cocoa butter 10%

This first group is used to prove if castor oil soap melts faster than other soap without castor oil.  They would be made with the same water content with the same size and material mold.  As of now these soap had been made.  I will cure the soap for 2 weeks, cut a piece from each block and weight them to be exactly the same gram and pretty much the same dimensions.  Then I will dip each piece into a glass of water (same type of glass with same amount of water) for a period of 48 hours.  Each piece of soap will be taken out and weighted at 2 hour, 6 hour, 12 hour, 24 hour and the last 48 hour mark.  This is to examine the water solubility.

  • Soap #4: coconut oil 20%  palm oil 20%  olive oil 35%  avocado oil 15%  cocoa butter 10%  water contains 5% oil weight brown sugar (sorry, I don't have refined white sugar in my household)
  • Soap #5: coconut oil 20%  palm oil 20%  olive oil 35%  avocado oil 15% cocoa butter 5% castor oil 5%

This second group of soap is to be used together with Soap #2 to examine if castor oil in deed contributes to bubble boosting power like all the information points to.  As of now Soap #4 & 5 had also been made already.  They will be cure for the same 2 weeks before doing the tumbling test with water.  I will again cut a similar dimension and weight piece from each block, pre-washed my hands, then go for 10 second and 20 second tumble lathering test in my kitchen sink.

The final part of this experiment is a bit harder.  How do I find out if castor oil really contributes to "moisturizing" property of soap?  What feels moisturizing to one may not be the same to others.  Here's where I ask my readers if any of you would like to participate in my little scientific experiment.  Each volunteer will receive 5 different samples of soap marked with alphabet letters that are no associated with the soap numbers I assigned.  This is to ensure there are no bias in the final result.  Each participant will have to follow my instructions and perform the same tumbling in the sink test then fill out my survey.  Don't forget to leave your name and contact email in a short comment and I will get in touch with you shortly!

Tuesday, February 2, 2016

New Soaping Book and of course Soap Making

This is my first blog post of 2016!  I know it's already February, time flies...  I will be starting up my blog this year by talking about a new soaping book.
Brambleberry is one of the most reputable online soaping suppliers in the US.  I was recently invited by them to receive a copy of the founder/owner, Anne-Marie Faiola's (aka Soapqueen) new soaping book and make soap with one of their new soaping kits.  Her new book is called Pure Soapmaking, here's the link if you are interested: Pure Soap Making
I was given 3 kit choices to pick what I want to try.  I picked Aloe Vera swirl kit because it's the one with beautiful greens.  I love using colors!  What surprised me is the size of the package, didn't notice the whole kit is to make 5 lb soap log, including soap mold and a handy hanger swirl tool!

This new soaping book has lots of color photos and detailed step by step instructions.  With a wide range of recipe, additive, and soaping styles, I'm sure even the pickiest soap makers would find at least one they can't wait to try.

Pure Soap Making is all about making soap with natural ingredients.  In the book there's a section talking about all different colorants we use to color cold process soap.  The greens being used in this kit are oxides.  There are debates on whether or not oxides are considered natural.  Oxides used to be the mineral colorants mined from nature.  But those that mined from nature are heavy in body harmful metals.  Without filtering and refinement these oxides are not legal to use in cosmetics.  Because of the harm risk and extensive refinement process, nowadays oxides are man-made but identical to naturally mined.  Therefore a portion of soap makers consider oxides to be natural.  However, I disagree with this classification.  It's like saying man-made diamond is diamond.  Man-made diamond is identical to naturally mined diamond, in fact they are better than naturally mined diamond as they are literally flawless without a bit of inclusion.  So, would you consider man-made diamond real diamond?  I wouldn't think so.  When buying jewelry, sellers have to indicate whether the stone is naturally mined or the word "lab created" has to be indicated.

The book calls for swirly soap top but I'm never one who is known to follow instructions well.  I always have to put my own spin on soap.  I ended up peaking up the soap top with a spoon and sprinkle these tiny white soap balls I had rolled previously from left over soap.  I think it looks like heavy snow on evergreen forest.And don't forget to sprinkle some sparkling mica for an instant eye catching shin!Over all this new book is very well done.  It covers enough information for both beginner and more advanced soap makers.  I give it a thumb up!  Check out the kit and book deal from Brambleberry: Aloe Vera Hanger Swirl Soap Kit & Book