Saponification!

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I like to learn one big major skill in DIY every holiday season and turn it into my showcase gift for friends and family. This year, the Pie and I learned how to make soap, from scratch. There are four main methods of soap preparation:

Melt and pour: basically you get a kit containing a block of solid soap, goat’s milk, glycerin, whatever, and some nice moulds and you melt the soap in the microwave, mix it with pretty flowers, and pour it into the moulds. You may recall a disastrous outcome we had once with one of these kits. They are, however, super trendy right now and many DIY bloggers have instructions on making pretty layered soaps and things.

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Hand-milling: more or less a fancier version of melt-and-pour, in that you grate up a bunch of super nice soaps, melt them down, add things to them, and then chuck them in a mould.

Cold process: This is the from-scratchiest way to make soap, wherein you combine specific oils with a lye solution and cause the chemical reaction that leads to saponification. SCIENCE! Of course this is the version we did. Do not do this process with small children, as it is quite dangerous. To start, I began with the very clear and simple instructions I found on Garden Therapy.

Hot process: Essentially the same as cold process, except you speed things up by “cooking” the soap, usually in a slow cooker. We did a bit of this with one of the batches that didn’t turn out right the first time.

Safety Equipment

Lye is an extremely strong chemical, and you’re using it in a pretty violent reaction in this DIY, so safety should be your number one priority.  Lye can burn or blind you and inhaling its fumes is a really bad idea as well. You must, therefore, have good quality safety goggles (the kind that touch your face all around) and some strong rubber gloves with long sleeves.

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Wear long sleeved shirts and long pants, and make sure to wear shoes while you do this. If you have a chemical ventilator, I recommend you use it as well. This one cost me about thirty bucks at Home Depot and it’s great.

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Keep a large amount of white vinegar handy. The acid in the vinegar will neutralize the strong base of the lye should you happen to spill it on yourself.

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Work in an area as well that has access to fresh air either through a window or a fume hood (the first time we did this I went outside). I do not want to feel responsible for you people if you die while doing one of my DIYs. So please behave yourselves and BE CAREFUL!

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Non-Chemical Equipment

You need a lot of stuff for soap-making that doesn’t necessarily tie into ingredients and/or safety equipment.

You’ll need at least 3 heatproof bowls (glass or metal, doesn’t really matter), and at least 3 silicone spatulas.  I should also note that once you use these tools to make soap you probably shouldn’t use them in connection with food anymore, so plan accordingly. I used old spatulas I was going to throw out and/or picked up at the Dollar Store, and bowls I grabbed from Value Village for a few dollars each.

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You’ll need a double boiler or access to a microwave. I prefer using a double boiler because it’s easier to measure temperatures that way.

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You also need a highly accurate scale and thermometer. For that reason, a digital scale and digital instant read thermometer are probably best.

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If your scale is super tiny, like mine is, you’ll also need some wee dishes for measuring your oils. If you have a big one, you can measure your oils all together in one big bowl.

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You need something to put your soap in when it’s ready. You can use all sorts of fancy actual soap moulds for this, but the amounts I used in the recipes below produce enough soap to fill a 1L (~1qt) milk carton, which has a nice non-stick interior. Just make sure you wash and dry the carton carefully first.

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Also handy will be a set of old towels or blankets for wrapping the soap cartons.

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Not shown, but that is more or less necessary, is an immersion blender (again, you can’t use it again for food, but you can buy a new one off Amazon for twenty bucks). I dedicated my old one to the cause and bought a shiny new one for myself.

You may also need a wide mouth canning funnel, for pouring your soap mixture into your cartons. You might not need it, depending on how steady your hand is, but I found it very useful.

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Soap-Making Ingredients

Now we’re getting down to business. Soap at its most basic is composed of oil/fat and lye. That’s it. How you put those together is up to you. So you’ll need assorted oils (vegetable, castor, olive, coconut, etc.) to get you started. I recommend doing a little bit of research into the different properties of each oil and what they do before you make your selections. I found this article to be particularly helpful.

To “flavour” your soaps you will also need an assortment of essential oils and some dried and ground herbs. The essential oils will add your desired scent while the dried herbs will add texture, and ground herbs will contribute to colour. Here is a handy list of ingredients that will change the appearance of your soap.

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Very importantly, you’ll need some distilled water. Use distilled over filtered or tap water simply because the varying mineral compositions in undistilled water will make your results unpredictable.

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Equally important is lye. That’s what makes the magic happen. For solid soap, you want to get yourself sodium hydroxide (potassium hydroxide is used for liquid soaps). Get the lye that comes in free-flowing crystals or pellets – they’re easier to measure and less likely to get everywhere.

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For those Canadians who don’t have access to specialty soap suppliers, you can purchase lye at Home Hardware.

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And the final magic ingredient you will need is a LYE CALCULATOR. I found the SoapCalc to be helpful and easy to use (and it’s free). There’s also a handy link in the top menu that explains all the calculations. Basically, you begin by figuring out how much soap you want to produce – for our purposes, 700g soap fits in a 1L milk carton. From there you calculate what percentages of oils you want to go into your soap, and then the software will do the calculations to tell you the exact measurements of oil, lye, and water that you will need. And then it tells you the quality of soap you will produce with those numbers. And it does it in metric AND imperial. Then you can print it out and keep it handy. I love things that do math for me.

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The Cold Process Process:

Once you get the hang of this (i.e., like me, you do it five or six times in a row), it’s super easy – you just have to pay attention so you don’t hurt yourself and make sure your measurements are accurate. One of the most important things you need to do first is measure out your raw ingredients as accurately as possible.

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You’ll notice in this, our first batch, that we used olive oil as one of our ingredients. Olive oil, we learned later, is hard to make into soap because it doesn’t always form a trace (you’ll see in a little bit what we mean), so we actually had a lot of trouble with this first batch. But that’s good for you guys, because I can show you how we fixed it. And we had no problems with any subsequent batch. Anyway, keep measuring out your ingredients. Accuracy is key.

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When all your ingredients are ready and laid out (this includes the water for your lye solution and all your flavourings), then you can put all the oils together (except for the scented ones) and start gently heating them in your double boiler with one of your heatproof bowls.

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A note on temperature: Always, always, ALWAYS make sure that your oils and your lye solution are the same temperature when you mix them together. This is very important. Every recipe differs, as will the humidity levels and relative temperatures of your environment, but generally you are aiming for an ideal temperature of between 110° and 120°C for both your oils and your lye solution. They don’t have to be exactly the same, but in that range would be best.

So, once your oils reach about 120°-125°C (I like to get them hot and let them cool a bit while I do the next step), you can work on your lye solution.

Take another one of your heatproof bowls and fill it partially with water and ice to create an ice bath. Set that aside for a moment. Measure out your room-temperature distilled water into your third heatproof bowl and have your lye crystals measured and at hand. Do this in a well-ventilated area. As I mentioned above, the first time we did this I sat on our balcony in the fresh air. In subsequent times I just put everything on top of the stove and did it with the window cracked and the stove fan going at full blast. But this looks way more dramatic.

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When you’re ready, grab one of your spatulas and your lye crystals and ever-so-slowly pour the lye into the distilled water. SLOWLY. Stir gently the whole time.

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At first it will look like nothing is happening. I feel like my neighbours were suspicious at this point.

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But then the lye will start to dissolve and the water will turn cloudy and begin to steam. DO NOT INHALE THIS STEAM. IT IS NOT GOOD STEAM.

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Make sure to get every last crystal into the solution.

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Continue to stir the solution until it starts to clear, then take its temperature. The lye/water reaction means the liquid will get really hot, really fast. You want to cool the lye solution down to the same 110-120 range as the oils, and that’s what the ice bath is for. Feel free to use it (because we were doing this particular batch outside in November, it didn’t take long for it to cool).

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When the lye solution and the oils are the same approximate temperature, you can add them together. Slowly. Stirring the whole time. And ALWAYS add the lye to the oils, not the other way around.

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Now you keep stirring. Only crazy people do this by hand because it can take up to four hours for this stuff to start working. Use your immersion blender in thirty-second bursts to emulsify the mixture. There is some spatter involved, so make sure you’re still wearing all your safety equipment. I find it useful to do the blending with the bowl sitting in my empty sink. What you’re looking for – and this may take a while – is what is called “trace”. This is when the mixture thickens and starts to resemble pudding, and when you drip a bit of the mixture on top of itself (like it falls off the blender back into the bowl), you can see the trace of the drip on the surface). At this point, you have to act quickly (hence the blurry shot).

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Now you add in your solids and your essential oils and blend it up again.

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Pour your new almost-soap into your milk carton and tape down the top. Wrap it in a towel and put it somewhere warm (like on top of your fridge or near a heating vent) for 48 hours. The carton will feel warm and then actually hot over the next little while as the saponification occurs.

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Neutralize your dirty dishes with vinegar before you wash them. And keep your gloves on while you do it, just to be safe.

Now, sometimes, you don’t get a trace, no matter how hard you try. Sometimes this means you weren’t mixing hard enough (so that’s why you use an immersion blender). Sometimes the temperature isn’t right – the ingredients don’t have the same temperature, or they’ve cooled too much. If you are having trouble achieving trace, try putting the bowl back on the double boiler and heating it up a little more again. And if that doesn’t work, then just shove it into the carton anyway, and hope for the best. You’ll know in 48 hours if it worked or not. In this case, the olive oil combo we used, combined with our inexperience and inexpert technique, meant that when I ripped open the carton 48 hours later I had a chunk of soap and then a bunch of oozy liquid. Always wear your gloves when you open a mould, just in case something like this happens. There’s no way of knowing how much of that liquid is reactive lye.

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But this is fixable! Just mush it all up (newly saponified soap is very soft).

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And put it back on your double boiler to melt it down.

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You won’t get the same smooth texture you had before. In fact, it’s kind of weird.

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And then you can shove it into a new milk carton, seal it up, and wait another 48 hours.

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Now it looks a little bit weird and rough, but it’s real soap! You can always trim off the rough bits.

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So after 48 hours, you can cut your soap into manageable pieces. It’s very soft, so it’s not a difficult task. Make sure to wear gloves as you do it, in case there are pockets of lye hidden in the soap, and also because freshly made soap is really drying.

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Set your soap upright on a rack or in a box (you want as much airflow around it as possible) and put it in a cool dark place to cure for at least 3 weeks. After that time, you can buff it to a shine with a soft cloth and wrap it for gifting!

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I made six different batches of soap in my experiments. Here are the percentages and shots of the finished product, for your edification.

Olive Oil

  • Coconut Oil 34%
  • Olive Oil 34%
  • Avocado Oil 23%
  • Castor Oil 9%

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I cut off some rough bits from this soap after we re-melted it, and saved them to use as inclusions in another recipe.

Lavender / Rosemary Mint (two separate batches with the same oil base)

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  • Coconut Oil 34%
  • Crisco 30%
  • Castor Oil 14%
  • Sweet Almond Oil 11%
  • Avocado Oil 11%

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Ground Lavender flowers and essential oil added at trace. Dried Ground Rosemary and Mint added at trace with Peppermint essential oil.

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You can see in the pieces on the left that I originally forgot to add in the ground herbs before I poured it into the mould, so I emptied it out, stirred them in, and poured it back in, leaving trace amounts of plain soap on the bottom. You can do this on purpose too, to layer your soaps.

 

Chocolate Orange

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  • Crisco 40%
  • Coconut Oil 30%
  • Canola Oil 20%
  • Cocoa Butter 10%

Sweet orange essential oil added at  trace. Turmeric added at trace for orange colour. Cocoa added and swirled in.

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Coffee Cocoa

  • Crisco 40%
  • Coconut Oil 30%
  • Cocoa Butter 10%
  • Sunflower Oil 10%
  • Castor Oil 10%
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It’s hard to see in this photo, but it is more of a brown than the chocolate orange, which has a ruddy undertone. They do look very similar, however!

 

Lye solution made with chilled coffee (to learn how to make lye solutions using other things than water, read this article). Lemongrass Oil added at trace, together with 2 tsp cocoa and 2 tsp oatmeal.

Guinness Oat

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Those lighter patches are the inclusions of plain olive oil soap.

 

  • Crisco 40%
  • Coconut Oil 30%
  • Shea Butter 15%
  • Castor Oil 8%
  • Sunflower Oil 7%

Lye solution made with chilled, flat Guinness Stout. Sage oil added at trace, together with 2tsp finely ground oatmeal. Inclusions from Olive Oil soap added.

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Beauty and the Beets

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I have extremely sensitive skin.  Just looking at something wrong will cause me to break out in hives, rashes, or various forms of acne.  So I’m very careful about the stuff that I put on and in my body.  I also find that soaps, lotions, and all that stuff made with all natural ingredients seem to me to be more luxurious than the anonymous filled plastic bottles you can pick up at any store.  Why not share that luxury as a gift?  There are two high-powered executive type ladies in my family, so I thought I’d make a little “working woman’s survival kit.”  Here, then, are instructions (from various places) for some little home-made beauty products with a touch of luxury.  I’ll start with the hardest project first, and move to the easiest, though I wouldn’t really call any of these projects hard.

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Let’s make some lip balm!  It’s frightening how much you can pay for this stuff in the stores.  This recipe here, which I modified from one I saw on TLC, produces about 3/4 cup (6oz) of lip balm (which filled 12 little half-ounce tubs), and cost me about $4 in supplies.  BAM.  If you were wondering, I got the plastic tubs from Patch on Etsy.

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Start with 1/4 cup beeswax.  You can get this in tiny, easy-to-melt pearls from some places, but this being Newfoundland I got it in a solid 2oz block, which is pretty much 1/4 cup.  This stuff is local, from Paradise Farms.

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I grated it and cut it up into little pieces.  I recommend getting all your ingredients measured and containers ready to go beforehand, because once this is ready to go you will need to act quickly.

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Pop the wax into a double boiler (or metal bowl set over a pot of bubbling water) and let it melt completely. It won’t take long.

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Add in 1/4 cup almond oil and 2 tablespoons coconut oil.

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Don’t freak out if the wax curdles — it’s just adjusting to the cooler temperatures of the oils, and will melt again.  Just keep stirring. I also added a few drops of peppermint essential oil at this point, just for a nice cooling sensation on your lips and a fresh scent.

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When everything has been fully liquified again, you can remove the pot from the heat.  Whisk in 2 tablespoons beet juice for colouring (you can leave this out if you wish and your balm will be whitish or ivory, depending on the colour of your wax).  You can add more if you wish, but make sure to whisk it well, as it won’t fully combine with the wax and oil.

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Quickly transfer the liquid to a cup with a spout and pour into your containers.

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I worked too slowly (because I was taking pictures, which then ended up blurry, damnit) and had to re-melt my lip balm in the microwave to get it all out.  Make sure to wipe out the cup and the melting bowl with a paper towel before you wash them — it can get messy otherwise.  Work whatever is leftover into your hands.  It’s quite nice.

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I probably should have smiled for this photo.  But I didn’t realize how grumpy my mouth looks this close up.  😦  But the balm is very nice, very refreshing and smooth.

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Let’s make some deodorant!  Store-bought deodorants are full of all kinds of gross things, and there have been studies done on the links between aluminum used in anti-perspirants and Alzheimer’s.  This recipe, which I modified from the one here, has four ingredients, and each one has a specific purpose.  I doubled what I will present to you below, but it produces about half a cup of solid deodorant.

In a medium bowl, whisk together 1/4 cup baking soda and 1/4 cup arrowroot or corn starch.  The baking soda is your key deodorizer, and the starch is your moisture-wicking agent.

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Melt 6 tablespoons coconut oil (your moisturizing agent and the stuff that will hold everything together in solid form) and whisk that in as well.  Add in a few drops of tea tree oil (for antibacterial purposes, and to add a light scent).  I also added in a few drops of lavender essential oil, just for the frivolity of it all — I know, that makes FIVE ingredients.  I love the combination of lavender and tea tree.

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Pour that into a container with a lid and allow to solidify.  Apply it to your underarms with your fingertips.  Voila.

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***EDIT: So I’ve been using this for a little while now and I have to say that, at least for me, this stuff works BETTER than either the super dooper organic and chemical-free version or the regular brand-name stuff you pick up in the drug store.  Sure, it’s a little grainy going on, but it lasts way longer, there’s no residue getting anywhere it shouldn’t, and in terms of actually deodorizing, it’s tops! ***

Let’s make some shower scrubs!  I think that salt/sugar scrubs are the epitome of pampering oneself at home, so I decided to make not one, but two different kinds.

Orange Salt & Sugar Scrub: In a bowl, mix together 1 cup sugar and 1/2 cup sea salt.

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Add in 1/2 cup melted coconut oil, 3 tablespoons almond oil, and 2 tablespoons vitamin E oil (you can get that at the drug store).

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Add in a few drops of orange essential oil, as well as finely grated orange zest.  Stir well.

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Scoop into a container with a tightly-fitting lid, and keep in your bathroom for when you have some extra time in the shower.  Just remember that those oils can make the shower very slippery when you rinse off, so be careful.

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Brown Sugar & Coffee Scrub: Did you know that caffeine is a great thing for your skin?  In a bowl, mix together 1 cup dark brown sugar and 1 cup finely ground coffee (not used coffee grounds).

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Add in 3 tablespoons honey and 1/2 cup light olive oil and mix to combine.

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Scoop that into a container with a tight lid and keep that in the bathroom as well, for when your skin needs a little pick-me-up in the morning!

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Let’s make some eye makeup remover!  This is so easy, it’s like not even a thing.  Mix together 4 tablespoons olive oil with 3 tablespoons almond oil.  To remove your waterproof eye makeup, simply moisten a cotton ball with the stuff and there you go!

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Tidy up the edges of your containers before you put the lids on.  Decorate your containers with a few personal touches.

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Presentation is important, even though it’s what’s IN the containers that counts!

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