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Showing posts with label experiment. Show all posts
Showing posts with label experiment. Show all posts

Sunday, October 7, 2012

So you want to build a solar oven. Pt 1

So you want to build a solar oven? Good Luck!

There are kits you can buy, or you can buy more heavy duty materials to make it last longer. Well I'm broke as balls; you know "welfare budget" and all, so I wanted to figure out how to do it with found objects, things I had around the house, and minimal purchase, but from things only found at the local dollar store. Information about the benefits and blah dee blah of solar ovens will come in a different post.

Pictures will come as I make it happen, and so I'll write this sort of like a diary...

Day 1: 10/7/2012

Dear Diary,
   Today I want to build a solar oven. I've seen examples and web pages and want to see about building one of my own.

I have a lot of cardboard boxes around here, let's see what i can come up with.

I made from parts of 1 box, a 15" x 15" with 6" sides. I taped it with duct tape, just to hold it together, so i could have my hands free.

The great thing with this is that I can always build the sides up by gluing and taping more cardboard. Perfection and beauty not required.

I want to essentially paper mache the cardboard to make it more durable. So I made home made Mod Podge like this:

1 Pint Mason Jar
1 Bottle All-Purpose White Glue (Like Elmer's, but a generic brand will be just fine. It needs to be non-toxic. This type of glue does not release under heat.)

Into the jar, I poured the bottle of glue, which a typical bottle will be just a little less than half of the jar. I filled the rest with water, put on the lid, shook, a voila; home made mod podge for a fraction of the price. I think I paid 37 cents for mine from the clearance shelf at Walmart.

I used brown paper shopping & lunch bags, because that's what I have at the moment, and pasted on a layer on the box and I'm letting that dry tonight.

I also am using a cooling rack with a piece of cardboard cut to the size of the top, duct taped it in place, and have the bottom pasted with brown paper too. I'm letting that dry tonight as well. That will be the base of the "cooking" part of the oven, where I'll be pasting aluminum foil.

The Outside box is larger than the inside box. I'll be crumpling newspapers to put in between the two. The air between them as well as the newspaper will insulate allowing the cooker to be more efficient with less heat loss.

That's all I've done for tonight. I'll check back tomorrow.

*Disclaimer* There are fantastic free plans, and kits out there available over the internet. This is not the ONLY right method. This is an experiment. If it works, great. If it doesn't, well, we'll try something else.

Wednesday, September 26, 2012

Making Body Butter Bars


From: http://ourgreenexperiments.blogspot.com/




I have a project that I've been meaning to do for quite a while now. I had all the supplies, I worked out my process, everything was ready to go...........then 3 months went past. In the last three months I forgot all about my project, I have so many that's not a hard task for me but when I was reading Keeper of the Home yesterday my project came back to me. YES!

This idea originally came to me after my soon-to-be-husband fell in love with the Buffy Body Butter Bar from Lush. He didn't care so much about the exfoliation aspect, but he really enjoyed being able to moisturize in the shower. I was really happy that he enjoyed Lush's product (I like stuff from Lush, I figured it would be easier for me to get away with buying stuff from there), but they are $12 each. That was a cost that I couldn't stomach to pay all the time (and I didn't particularly care for the scent either). I found this great informative youtube video on how Lush makes its body butter bar and knew I could do it at home myself.

Body Butter Bars

You'll Need
Mold (I used a silicone cupcake tin)
Double boiler of some sort
Shea Butter
Coconut Oil
Beeswax

1) Determine how much weight your mold can hold. I did this by placing my mold on my kitchen scale, hitting tare, and pour water in to the desired fullness. If you're using something like a cupcake tin, or something with multiple cavities you can just fill one and then multiply by the number of cavities. My cavities held 2 oz of water, so I needed a total of 24 oz of oils.

2) Measure oils. I decided that I would use equal parts of beeswax, shea butter and coconut oil, so I measure out 8 oz of each.


**NOTE: When buying beeswax, it's probably better to buy the pastilles or 1 oz blocks. I bought the 1 lb blocks because they were cheaper (I regret that decision). It took me 10 minutes to figure out how I was going to break down that block of beeswax. I ended up just breaking it into pieces with a hammer.**


3) Melt oils. You can do this step however you feel comfortable. Options include in the microwave, crockpot or using some sort of double boiler. My double boiler was actually a steaming pot that I set a 4 cup, glass Pyrex measuring cup in (it made for easy pouring).

I did find that the oils melted faster if I put the lid on. Also the beeswax takes the longest to melt so you might want to put that on the bottom.
This is what everything looks like when it's melted. Those little bits on top are beeswax that didn't fully melt. (Don't worry about them)

4) Pour melted oil into mold.

5) Put mold in freezer. My bars were completely cooled in 33 minutes. (I know because that's exactly how long I was exercising)

6) Remove from mold and enjoy! After taking my bars out the mold, I wrapped the ones I didn't intend to use right away in wax paper and put them in the freezer. The one I'm currently using is in a metal tin in my bedroom.


That's it. It's super easy and doesn't require a lot of work. I guess the real question is economical is this?

7 lbs coconut oil: $17.95
5 lbs shea butter: $50.85
5 lbs beeswax: $52.60
7 lbs = 112 oz
5 lbs = 80 oz
17.95 / 112 = $0.16/oz coconut oil
50.85 / 80 = $0.64/oz shea butter
52.60 / 80 = $0.66/oz beeswax
($0.16 x 8) + ($0.64 x 8) + ($0.66 x 8) = $11.68 for 12 body butter bars
OR 
$0.97 per bar

Not to toot my own horn but I don't think anyone could deny that this wasn't a successful experiment. Up next I'm going to be making stick deodorant. I just have to find some of those little tubes first. 

Until next time, 
Kellan



   The Kitchen Witch Of The South