Mocha soap

Seems a while since I made any soap, and yet I have still not used any I have made as the first batch is still curing. It will be 4 weeks of curing at the end of this week however, and I think it is nearly ready! Exciting! But to keep me amused in the meantime, I quite fancied trying a coffee based soap.  Here is the ingredient list which I used:

• 306g olive (pomace)
• 306g coconut oil
• 72g avocado oil
• 126g rice bran oil
• 90g shea butter
• 127g lye
• 254g cold brewed coffee

• 2 tsp white Kaolin clay
• 3 tsp white TiO2 powder
• 2 tsp cocoa powder
• 2 tbsp used coffee grounds

I have not used a clay before so thought I would give it a go - have no idea how much I should have put in, so I must confess that I guessed!  I wanted to make a dark soap which represented the coffee but with a lighter swirl in it, hence the cocoa powder addition for the darker colour, and the whites for the lighter.  

The chilled brewed strong coffee was used as water with the lye being added to that. It did smell a little burnt or just odd when lye was added but hopefully that won’t come across in the soap. The lye solution was dark, but I thought once added to the oils that it might end up a caramel colour so I decided to darken it with cocoa powder. This also adds a nice twist of making it a mocha soap!

At light trace, I removed a portion of soap out into separate container (around a cup/250ml) and to this the clay and titanium dioxide was added to lighten the soap (soap was brownish) - did not make white but lightened into a lightish cream colour. The cocoa powder was added to the larger remaining batch of soap to make it a darker brown, and I mixed in the used coffee grounds into this for a little texture!

One both were ready I poured the darker soap into soap a lined loaf mould, then poured the lighter colour soap in from a height (so it would sink) and mixed a little with skewer in to attempt a swirl effect (see pic above).

the frustration of soap curing...

After now having made several batches of soap, I find myself very frustrated and impatient while I wait on the curing process to complete. It has only been 3 weeks since I made the my first soap batch, but it seems like much longer.  From my reading, I am sure that some soap types will take longer to cure than other but how long?!? The length of time would not be a problem if I knew what to expect from each of the different oils, essential oils and colouring, but as I am still a little unsure how it is all going, I am keen to try them out.

As a scientist, I have become increasingly unhappy about the just waiting a recommended set amount of time until curing should be done - surely different climates and storage environments will have an effect of speed of this, so back to the internet I went. I found this great blog post from Adventures With The Sage written in 2013 which suggests a simple answer to my concerns - cue cards! The idea is simple - weigh the same bar of soap from a batch regularly and record the weight. When the bar stops losing weight (i.e. losing water), then curing is complete and the soap is ready to use.

I have knocked up some of these cards, and am now weighing the sap batches every day or so.... we are still losing a little weight each day - around 0.2-3g ish.  

Juicy orange soap with attempted swirl!

I was so pleased with the outcome of the scented lavender soap, that I was excited to try another essential oil as well as incorporating some colour!  I followed a recipe from the soap queen which had the following recipe:

• 280.66g coconut oil
• 280.66g olive oil
• 280.66g palm oil (responsibly and sustainably sourced)
• 93.55g rice bran oil
• 130.41g lye
• 306.17g distilled water
• 28.35g orange essential oil (I used 5 fold oil)
• white titanium dioxide powder
• paprika

Method

Added the lye into the water, mixed until dissolved, then allowed to cool to 130F.  Weighed out and melted the solid oils (coconut and palm), then added the rice bran and olive oils.  To prepare the colours, I mixed 3 teaspoons of powder with approx 3 tablespoons of olive oil (each power separately!).  Once the oils and lye solution were both at 130F (recipe slightly higher temp than normal), the lye was added into the oils and blended until a light trace was reached.  I then poured around 500ml of the soap 'batter' into a separate container and mixed in the paprika to colour it, then the orange essential oil  after the colour was mixed.  In the original pot I added in the white titanium dioxide and mixed.  I used a spoon to mix in the colours and oil as I was worried about the better getting too thick too quickly if I used the stick blender. I then poured the orange coloured batter into the white in 4 places  - this was done from quite high so that it would get deeper into the white batter.  

To create the swirl, I used a skewer and mixed the orange and white in a circular motion. The original post said to do this only once, but I ignored this as once didn't look enough (I should have listened perhaps!).  The soap batter was getting quite thick by this point and I was worried it would get too thick if I took much longer! Finally I poured most of it into a silicone loaf mould, and the rest into a cylindrical pipe mould which I lined with acetate paper for easy removal.

Results!

I removed the soap from the moulds after around 30 hours.  The silcone mould is great!  The soap loaf just peel away easily from this.  The acetate sheet stuck a little more than I hoped to the soap, but it did allow easy removal from the pipe.  When removing the acetate, it pull out small round bits which makes the soap look like there were air bubbles on the outside (but there wasn't!).

I was a little worried when I saw the large soap loaf out of the mould as it looked like the swirl was... well not very swirly! After cutting though, the swirls looks a lot better... but I think I still overdid it!  

The soap smells of orange as I had hoped, but it is quite a sweet orange - a little like jaffa cakes!  It is very nice, but certainly sweeter than I expected!  The only problem I had was when mixing the titanium dioxide powder. It was very hard to remove all the lumps, and it seems that after cutting I wasn't as successful at this as I had hoped!  It is probably not possible to see in the pictures, but on some of the bars there are white drag lines from where the knife has cut through some white colour that has not been mixed too well.  I plan to invest in a small milk whisk and use this for pre-colour mixing next time! 

For some reason I was quite stressed when following this recipe! Not because it was particularly hard to follow, but I think I was panicking about the batter getting too thick to work with after splitting it and adding colour etc. Anyway, it was quite stupid to get so stressed out and I must confess that my remedy of a gin and tonic (x2!) helped chill me out!

Castile soap with lavender - first use of essential oil!

After making the batch of castile soap (last post), I decided to use the same recipe and add in lavender essential oil and dried lavender into the soup.  This is my first experiment with essential oil therefore I thought best to go with a small test batch:

• olive oil - 272.10g
• lye - 34.4g
• distilled water - 85.47g
• lavender 40/42 essential oil - 15ml
• dried lavender - did not record weight - judged by eye!

The method was exactly the same as in previous post, but when trace was reached, I poured and stirred in the essential oil and dried lavender with a spoon. Since this was a small batch, I used a homemade mould (cleaned out cocoa container!).  The soap turned out white with lavender distributed nicely through it, and smelling of lavender (no real surprise there!). I am pretty pleased with the result!

One thing to note was that the dried lavender changed to a brown colour which was due to the heat of the soap during saponification. 

Updates and Castile soap

A quick update on the coconut milk soap which had turned green inside after I unwrapped and cut it.. it has been curing now for over a week and the green colour has disappeared and the soap is completely white.  The smell has also gone and smells unfragranced (if that is possible!)!  I have been doing a little reading a think the problem with the discolouration in this soap was caused by insulating the mould after pouring.  Soaps that include milks or yogurts do not need to be insulated as this can cause the milk proteins to discolour and change colour.

Castile Soap

Castile soap, traditionally made using only olive oil, is a hard whiteish vegetable soap.  Although there are many variations on recipes, I decided to use a recipe using only olive oil and lye:

• olive (pomace) oil - 907g
• lye - 114.82g
• distilled water - 284g

The method involved added the lye to the water, mixed to dissolve and setting aside to cool down to 110F.  The oil was heated and when both the lye solution and the oil were at 110F, the lye solution was poured into the oil and blended until trace was reached.  The soap block was insulated and left for around 48 hours before cutting.  

When I removed soap from the mould, the colour was not uniformly white (see pics).  Again, after doing a little further reading, because of the high olive oil content, the soap may need 3-4 days and may not need insulated (although I am not 100% sure about that yet!).  After cutting I also noticed a thin light white layer on the top of the soap.  I am not sure yet whether this is 'ashing' or simply this part has dried more - I have cut this off half the soap bars and left on the other half and will see what happens as it cures.

testing other handmade soaps

I mentioned in my first post on this blog that I am new to soap making and my reasons for giving this a go.  I have only ever used 'normal' store bought soaps so it occurred to me that I should probably try out a couple of handmade soaps so I have something more to compare mine to when they are ready for use.  So I took to eBay... of course I ended up spending a silly amount of time browsing many different types (plus getting sidetracked with almost everything else on there!), but finally settled with a bar of homemade castile soap (olive oil, lye and water).  This has been dispatched but shouldn't be too long in arriving, however once I get an idea in my head, I find it hard to be patient! So I went shopping...

The only shop (that I am aware of) near where I live that sells handmade soap is Lush, so I went there yesterday to have a look.  I must confess that I have never been in this shop before as I have always been put off by the extremely strong fragrant smell that lingers outside as you walk past. On entering, I found the table of soaps and was pleased to see that beside each soap there was a sign listing all the ingredients of each.  I quickly noticed that almost every soap contained sodium lauryl sulpfate (SLS) which is one of the many added synthetic substances in store soaps that I was hoping to avoid.  SLS is a detergent and sufactant which basically acts as a foaming agent producing lather making the cleaning more effective.  It is very cheap and can be present in reasonably high amounts in soaps and other cosmetic goods. The main reason I want to avoid SLS and other synthetic additives is that these can be irritants and I want to keep my soaps as simple and natural as possible.

Anyway, a very helpful sales assistant approached me as offered help.  I told her that I was looking for something as natural as possible and wanted to avoid things such as SLS.  She said that 'they' (lush I assumed  - but did wonder if she was being a tad bold by speaking for whole company!) had tried making soap without SLS but it doesn't really work as SLS is actually the soap!  I smiled politely but added that I would still prefer something without this, and it turned out that they did in fact have 2 soaps that were SLS free - despite what she had just told me!  After some further discussion about colours and fragrances, I realised that I wasn't going to get anything that was simple and completely natural, but since I had now invested so much time and effort into this visit I wasn't going to leave empty handed!  I opted for a bar of a green vegan soap called parsley porridge:

 

So home I went and after a trip to the gym, I ran a bath to try it out!  The first thing I would say, is that the bar felt ever so slightly sticky... or perhaps a little oily.  I was quite pleased about this as my own soaps that are curing, also currently feel very slightly oily to touch.  The soap does have a very distinct smell... its quite a clinical smell, not unpleasant though.  I found it lathered well and was quite pleasant to use, and I did feel and smell very clean by the end of my bath. I had left the soap in a soap dish but there must have been some water in the bottom of it, as when I went back in bathroom later there was a small green puddle of soap under the soap.  This is prob to do with the softness of the bar, so I might see this with other handmade soaps.  In summary though, I like the soap and seems to be fine on my sensitive skin (but its only been used twice so far!), but I am looking forward to testing the castile soap and comparing it to my own (which I made a batch of other night and hope to unmould later today!).

A final point... I was quite surprised at the price of the soaps in lush - although handmade and I would expect to pay more for a handmade bar, I was still shocked that the size of the bar I picked up cost me £5.44!  

A little too bold?!

Since the 'success' of my first attempt of soap making, I have been trawling the net for soap related information, ideas, recipes etc.  This was partly to pass the time between the pouring of the first batch and the 48 hours of waiting until I could unmould it!  Although I was keen to get started with a second batch instantly, I had overwhelmed myself with recipes and blogs and found myself unsure what to do next.  I ended up doing nothing for a few days, going back to the mundane life of work, chores, gym and catching up on the odd episode of TV that I watch.  However by the weekend, and armed with a generous gin and tonic, I was back searching for my next recipe!

I was keen to try something that used the limited ingredients which I had (olive/coconut/palm oils, or shea butter), but that was a little different/adventurous from the first batch.... I finally opted for a "easy to make coconut milk soap recipe".  As with the last recipe, I scaled it down to fit my mould and checked the lye calculation (although I am not convinced this was quite correct... see later!). The ingredients were: 

• olive oil - 560g
• coconut oil - 140g
• coconut milk - 224g
• lye 96.6g

Method:

Before starting, I read through most of the comments which had been left on the post for this recipe.. there were probably about as many comments reporting success when they attempted to make this soap as there were unsuccessful attempts! The general consensus was that there are differences in the water/coconut ratios in different varieties of milk, plus the added complications of additional additives that may have included (such as preservatives). Despite these 'warnings' I carried on, quite confident that since it has worked for many others, it would work for me! The coconut milk I had in my cupboard was this one:

Ingredients : Coconut extract (53%), Water, Antioxidants: Citric Acid (E330).

I followed the method on the website, weighed out and melted coconut oil, and added in the olive oil.mThe method stated that the lye should be added into the milk (which should be chilled). This is where I slightly swayed off the listed method as it did not state to let the lye/milk solution cool down before adding to the oils - I decided to cool them to around the same temp as most recipes I have read have said to do this. This mixture did turn a caramel colour which was mentioned in the method - apparently its the lye reacting with the sugars in the milk. When both the oils and the lye/milk mixture reached around 120 F, I added the lye solution to the oils and blended. Trace was reached in less than 5 minutes, but it was noticeably more runny than in the first batch. The soap was then poured into the mould then wrapped up in towels to set. As well as being slightly more runny, the soap mixture did not smell great! Its hard to describe... it didn't smell horrible, but just not great!

Unmoulding

I was more patient this time, and waited a complete 48 hours (without peeking!) before attempting to remove the mould and cut the soap. When I uncovered it, immediately it looked a bit wrong. On touching it, it was sticky but I decided to cut a slice and see what was happening.

Unexpectedly, the middle of the soap has a large green rectangle in it! Most odd! I am not actually sure what happened - any suggestions would be appreciated! After seeing this, I decided just to put it back for another couple of days and see what happens! I left the portion out which was cut, and it has since turned back to the whiteish colour.  I will give it a few days and have another look.

I suspect the problem lies with the coconut milk. If different milks have different water contents, then it would seem logical that the lye calculation which I did using the online calculator was insufficient. I told the calculator that I was using coconut milk, but there wasn't an option to state the water content etc. and I am not experienced enough to know how much of an effect this could have.  

I am willing to accept defeat with this batch if things don't improve! But this has only made me more determined to try again with other recipes!