Failed Experiment: Bermuda Buttercup or Sour Grass (Oxalis pes-caprae) as Dye

The “dyed” t-shirt is on the left. The shirt on the right is a basic white tee. I could have achieved similar results by entropy alone.

Chalk this one up to the failures column. In an attempt to use Bermuda Buttercup (aka Sour Grass) and various mordants to dye a couple of white t-shirts yellow and green, I succeeded in dyeing both snowy white shirts a pale shade of …let’s call it ecru. Let’s not call it “grimy old t-shirt white.”

There was a moment last night when one shirt took on an extremely light, delicate yellow-green cast–and that was exciting– but the color came out when I hand washed and rinsed the shirts.

Perhaps it was a half-assed project all along. I had no burning reason to dye with Oxalis–except that it’s thick on the ground right now. Also, Oxalis is rich in oxalic acid, which is supposed to (cough) serve as a built in mordant, helping the plant dye to bind more easily to both plant and animal fibers. Oxalis theoretically yields tones ranging from lightest yellow to a sort of acid green, depending on which additional mordants you might use. Used straight, it was supposed to yield a very pale yellow.

So I thought, why not play with it and see what happens?

My only information source for this project was The Handbook of Natural Plant Dyes by Sasha Duerr. This, also, was a mistake. I usually use more sources when I start a project, but I felt lazy.

I don’t know if this is a flawed book or not–I’m not judging yet. It’s on probation. It’s a pretty book, and inspirational in that it makes you want to dye everything you can lay your hands on–hell it makes you want to raise your own sheep and spin your own yarn, so you can dip it in acorn, cabbage and fennel dye, sing some folk songs, dance a dance,  compost the solids and acidify your garden soil.with the spent dye.

It sent me into fantasies of living in some groovy Sonoma-Portlandish nirvana where my house is clean and has plaster walls and wood beams in the ceiling (the wood beams are always in the fantasy) and a fire in the grate. I’d watch the goats graze in the back yard while I cheerfully sip tea and knit something marvelous out of hand spun angora dyed with Oxalis.

(As opposed to the reality of me stumbling around our money pit of house in my exceedingly unnatural and ancient polar fleece robe, desperately searching for a chair to sit on that doesn’t hold a cat, so I can watch the LAPD stalking around the unoccupied house across the street, guns drawn, trying to nab arsonist squatters, without being in the line of fire. True story! Just happened!)

ANYWAY. Point is, the book did not serve me well in the matter of Burmuda Buttercup.

This is, therefore, an anti-project post. Following these steps will get you nowhere.

A more determined dyer or a better blogger might soldier on and find the correct answers and report them to you as a public service, but I’m sorry my friends.  I’m giving up on this one and will probably try onion skin next.

Read on if you dare.

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Wild Edible: Bermuda Buttercup (Oxalis pes-caprae )

Image courtesy of Wikipedia. Photo by MathKnight

It’s Bermuda buttercup season in Los Angeles. Burmuda buttercup, also known as sourgrass, soursop, African wood-sorrel and  many other names, is a member of the wood-sorrel family. It originated in the Cape region of South Africa and is now found all over California, parts of Australia and probably other places as well. Here, it comes with the rain and vanishes with the heat.

It’s a “weed” (Wikipedia describes it as a noxious weed and an invasive species) so if you look it up on the internet you’ll mostly find information on how to eradicate it. It’s true, it’s terribly persistent, because it spreads through underground bulbs. But I think its attractive–usually more attractive than whatever neglected patch of landscaping it has colonized. More importantly, it’s super tasty.

It packs a potent, lemony punch, like true sorrel, which makes it an excellent salad green, and that’s how I use it–raw, in salads. The leaves, stems and flowers are all tasty, but for salads I just use the flowers and leaves. They provide a bright, lemony note which is just wonderfully fresh and tasty with tender new lettuce–springtime in a bowl.

As its true name, Oxalis, indicates, it is high in oxalic acid (as are many more common greens, like spinach), and (mandatory warning) oxalic acid should not be consumed in enormous quantities or if your physician has warned against it for some reason. But its sour nature makes it unlikely that you could stomach enough to hurt you.

Give it a try if you haven’t yet. If this form of oxalis doesn’t grow near you, other edible wood sorrels– or naturalized true sorrel–might. Have a look around.

Note the structure: 3 hearts joined at the center, and the distinctive brown freckles on the leaves.

Oxalis pes-caprae has another use–as a dye. I’m experimenting with that this week, and will talk about the results in a future post.

Indigo 101

Graham stirs the vat with his “witchy stick” –which is tinted many beautiful shades of blue.

One of the primary lessons of gleaned from my Shibori Challenge is that cotton is difficult to dye with natural dyes, whereas wool and silk take these colors beautifully. Know your materials!

Building on that, I’ve also figured out that the reason indigo dye is the favored dye for shibori techniques is because indigo gets along very well with cotton (and other plant fibers) and the dyeing characteristics of indigo are ideal for shibori. In fact, the idiosyncrasies of indigo probably led to the development of shibori, way back in the mists of time. So, if I want to make shibori patterned cotton cocktail napkins, as was my challenge to myself, I may as well fall in with thousands of years of tradition and dye with indigo.

Book reading and Internet surfing are all well and good for gathering knowledge, but to learn an unfamiliar process, nothing works better than to find someone who knows what they’re doing and go watch them. That way, you learn via a pleasant form of osmosis, rather than by frowning at at a glowing screen.

Our friend Graham Keegan dyes with indigo and sells his beautiful canvas and leather creations in his own Etsy shop. He kindly invited me to come to his studio and watch him dye some test swatches yesterday.

Continue reading…

The Whip: A Homemade Moisturizer How-To from Making It

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This 2011 post has been edited on 7/8/14, also to include new tips and new pictures. Most important of these are directions on keeping the lotion fresh.

Confession: I can’t live without my homemade moisturizer.

This recipe appears in Making It as Olive Oil Whip. It’s my everyday body lotion/face cream and I figured it was about time to share it with you. It only has three ingredients. It’s safe and wholesome and very effective. It’s so basic and natural that you could eat it!

You might find it heavier than what you’re used to, because it doesn’t contain all the chemicals that the store-bought stuff employs to make it absorb fast into your skin (see the Skin Deep database for the scoop on what’s in your favorite moisturizer). But I promise you that if you use it for a couple of days you’ll get used to the difference–and then you’ll get hooked on the results. My skin has never been so happy as it has since I started using this stuff, and I’m saving tons of money. I will never go back. I don’t even like the way commercial moisturizers feel on my skin anymore.

The Whip

Ingredients:

1/2 cup (125 ml) olive oil

2 tablespoons (.5 oz / 14 g)  of cosmetic grade beeswax, either in bead form or grated and packed into the spoons. (You can use vegan waxes instead)

1 cup (250 ml) of 90°F (32°C) water, distilled is best.

Essential oil of your choice for scent, about 10-20 drops, optional

(Notes on ingredients at the end)

Equipment:

You need a double boiler. An improvised double boiler would be a heatproof bowl balanced over a saucepan. I settle a Pyrex (i.e. heat proof) measuring cup in a small saucepan, which is more like a pseudo double boiler, but works for this. If you don’t have a Pyrex cup, you could also put a canning jar in the saucepan.

You will also need a stick blender. It is possible to do this with a countertop blender, but the stick blender works better and cleans up faster. And in case you’re wondering, no, you cannot make this recipe by stirring really fast. So when the zombies come and the power goes out, we’ll have to beat back our wrinkles with salves–most likely salves rendered from raccoon fat.

A kitchen thermometer. I did not use a thermometer when I started making this lotion, but I’ve been much more successful at it since I started using one regularly.

Very clean, preferably sterilized, jars to store your lotion in. This recipe makes anywhere from 1 to 1 1/2 cups. I recommend storing your lotion in several small jars instead of one big one, and we’ll talk about that later on.

Note:

This recipe is verbose, but the actual making of the lotion takes all of 10 minutes. It’s really very simple once you have the details down: melt wax into oil, blend oil with water, pour into jars.

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The Procedure

I am going to describe my method for making this. It’s not the only way–you can tinker around to make it work for the equipment you have. I like to do everything in one vessel–in this case, a 2 cup, heat-proof liquid measuring cup.

Melt the wax:

Put all the olive oil into the 2 cup Pyrex (or in the top of your double boiler setup) and add the wax. Place the measuring cup in a small saucepan about half full of water. Heat over gently simmering water, stirring occasionally. until the wax melts and vanishes into the oil. Beeswax melts at about 160°F (71°C).

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Pay attention to temperature:

Temperature is very important for the success of this recipe: the temperature of the water, and the temperature of the oil and wax mixture. The wax melts into the oil at about 160°F, as I said. Anywhere between 160°F and 170°F is a good place to be before you go on to the next step.

If you don’t have a thermometer, you know that you’ve hit 160°F when the wax melts, so if you start blending as soon as that happens, you will be at the right temperature. Just don’t super-heat the mix, or let it cool.

Prepare the water:

While the wax is melting, get your water ready to go. I always put my 1 cup of water into a liquid measuring cup, for ease of pouring.

The water needs to be at about 90°F (32°C). I bring the water to this temperature by adding a splash of boiling water to most of a cup of room temperature water, then checking the temp, adding hot or cold water as necessary to get into the 90° range.  90°, 92°, 95° — somewhere in there. It doesn’t have to be exactly 90°

If you don’t have a thermometer, you will have to guess. The water should not feel warm, but it should not feel cold, either. You’re shooting for tepid. This is hard, because how “tepid” feels to you is going to have a lot to do with the temperature of the air, and how cold your hands are… I’ll just say a thermometer is a handy little piece of kitchen equipment.

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Get your other stuff together:

If you’re going to use essential oils to add scent to your lotion, make sure you’ve got them on hand in your work area.

Also put your clean jars in the work area.

Prepare the blender:

Get your stick blender ready to go. It helps clean-up if you preheat the head of the stick blender in a cup of hot water before you use it. If you use it cold, the wax in the oil mixture solidifies prematurely when the cold head touches it. It’s not a disaster, just a little harder to clean up.

If you are going to use a countertop blender, put a cup or two of very hot water in the blender as well, to preheat the jar and the blades so similar sticking doesn’t happen. In this case, it’s an essential step, because there’s so much cold surface area to the blender, you can end up with lots of little chunks of wax in your lotion.

The next steps happen quickly:

Add the essential oil to the wax/oil mix

Stir in your essential oil(s), if using, 10-20 drops or to taste.  Be quick about it.

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Add the water and whirl!

Still moving briskly, take the oil/wax mixture off the stove and move it to where you’re doing your blending. Don’t burn your hand on the Pyrex handle, if you’re using my method.

Put the head of your stick blender into the hot oil and start it whirrrrrring. Soon as its going, pour in all the water in a fast steady stream, and keep blending until the lotion comes together. If you’re using a counter top blender, pour out the preheating water, pour in the oil, start the motor and pour in the water.

You’ll see that lotion-like substance form almost instantly. It’s very thick and shiny, like marshmallow cream, so you’ll have to bounce the stick blender around a bit to make sure it’s all getting mixed. With a countertop blender you’ll have to start and stop it and poke at it with a rubber spatula.

The biggest trick with this stuff is getting the water mixed in. We are not using any chemical emulsifiers, which would bind the water and oil together. We’re sort of uniting them by force of will and our cock-eyed idealism. It doesn’t always go smoothly. Ideally you can get all of that 1 cup of water to incorporate in a few seconds. But sometimes it just doesn’t want to mix in. Don’t overmix the lotion trying to force the issue, or the texture will be off. This is a very fast process.

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If after a few seconds you see that you have a lot of stuff which looks like lotion in your jar, but that there’s also pockets of water in there, and the water doesn’t seem like it’s going anywhere, just pause and pour the excess water off. Give the lotion another short whirl to bring up any more water that might be lurking at the bottom and pour that off as well, then call it done.

Note: You certainly may make this recipe with 1/2 cup of water instead of 1 cup–intentionally. The result is a thicker, heavier cream which is really good for harsh weather and outdoor sports, or just those times when your skin is extra dry and itchy. It also makes a good make-up remover/cleansing cream. Basically, the more water, the lighter the moisturizer, the less, the heavier. It’s all good. If you use no water at all, you’ve made a salve–and that’s good too!

Scoop the cream into jars:

While the cream is hot, transfer it to your prepared jars.  Let the jars cool a bit, and then cap them.

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Clean-up:

I have two words for you: baking soda. It’s hard to get this stuff off your tools, and you don’t want wax down your pipes. Rub with lots of baking soda, which will pick up the grease, and dump the baking soda clumps in the trash. Lots of soap and boiling hot water rinses help with the rest of the residue.

I don’t know if this is TMI, but this is the first stage of my clean-up process: I always plan to shower right after I make this, so I can take my lotion-covered cups and spoons into the bathroom and scrape out every last bit of lotion and slather myself from head to toe. Waste not, want not!

A safety note:

This recipe contains no preservatives. Any time you mix oil and water together, you run the risk of bacteria moving in and setting up house. I make this moisturizer because I want a simple product with no fishy ingredients, so I don’t want to add preservatives. I’ve never had any problems at all after years of heavy use of this recipe, nor have my friends or teachers who use it, as well, but technically it’s “unsafe” because it does not have preservatives in it. But you know, driving a car is very unsafe, but I still do it.vWith the lotion, I’ve decided the risk is very low compared to the rewards.

This is my choice–your choice may be different. If you want to use preservatives, Google will lead you to preservatives sold for home crafters. Alternatively, you could look into making skin care products with no water in them, like body butters.

All that said, you can minimize risk through a few simple precautions:

First, prepare the lotion in a clean environment, with clean tools and clean hands. If you have a dishwasher, send all your jars and tools through the sterilize cycle. Wipe down your counter with the strongest disinfectant you are willing to use, be that bleach, alcohol or vinegar, before you start working.

Second, the best way to keep the moisturizer clean is to use it fast, to stay ahead of bacterial growth. I go through a batch a month or less, because I use it all over my body. Think of it as a perishable food product, like a tub of hummus. This might seem strange at first, because we’re used to cosmetics which seem to have an unlimited shelf life. Not so with this cream. Use it up or throw it out within a month.

Third, keep it clean. Each time you reach into your lotion jar, you leave some bacteria behind to breed. If you keep all of your lotion in one jar, all of your lotion is available for contamination. This is why I recommend splitting the batch into a few jars, and only using one a time, leaving the others pristine. And of course, wash your hands before you reach in there-or even use a little spoon if you want to get all Howard Hughes-y.

Fourth, those extra jars should be kept in the fridge until you need them. The cream doesn’t spread well when chilled, but will be fine again as soon as it warms up.

Finally, use common sense. It is not a sterile product. Don’t put it on sores or wounds.

Rosemary essential oil has good antibacterial properties, so if you like you can add some –it can’t hurt, but I wouldn’t rely on it alone, I’d still follow the above advice. Vitamin E oil is often mentioned as a preservative, but it is actually good for keeping oil from going rancid, not for inhibiting bacteria.

Note that changing this recipe so that you replace the water with novel liquids–such as green tea or aloe–will make a product spoil even more quickly. I do not recommend it. If you insist on trying this, use it fast–as in, over a home spa weekend–and keep it in the fridge.

Whenever you use a homemade product, use your nose and your other senses. If the cream goes off you might notice a change in odor, texture or color.

Problems:

As I’ve already mentioned, the water doesn’t always incorporate well. The very best batches absorb the full cup of water and come together nicely and stay together. What makes them work seems to be a magical combination of temperature, timing and the blessings of the lotion fairies.

You may find a little water sitting in the jar now and then. This is not unusual, certainly not a sign of failure. Just pour it off.

In the not so good batches the amount of water that appears is epic as it comes unbound from the oil day by day. Just pour it off. The texture will be off, but the stuff still works, and is fine to use. It’s just not as nice. Try again. You’ll get the hang of it.

Notes on ingredients:

Olive oil:  There’s a lot of debate about what kind of olive oil to use. Some people wouldn’t hear of using anything but the best organic extra virgin olive oil in any body product. I don’t think it’s all that bad to use a lesser olive oil. More processed olive oil doesn’t smell as much like olive oil, which has its advantages. It’s up to you, really.

What I do like to do is use olive oil which I’ve infused with herbs, especially Calendula, which helps heal the skin

Beeswax: I use the beeswax pastilles sold by Mountain Rose Herbs. Yes, it’s a pain to have to mail order them, but it’s so worth it.  A 1 lb bag will make 30 batches of lotion. I use it to make salves and lip balm, too. It’s very handy.

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