Here is my idiot proof method of "making" this stuff:
Get an empty jar (like powerburst jar). clean it out...
Fill it up with HOT water (on the verge of boiling)
Get a small cheese grater. Something like this:
http://www.amazon.com/OXO-Grips-Sto...1_19?s=kitchen&ie=UTF8&qid=1386450408&sr=1-19
You need something to stir the water with, as you slowly grate the Fels down. I use a cordless drill with a paint stir tool. Make sure you stir it sloooowly that way it won't foam up.
As you grate and stir get 2oz of soapfree from masterblend and stir it in as well. Also if you are unsucsessful with the foaming issue, you can sprinkle a small amount (a pinch) of powder defoamer in it every so often. Not too much!
Don't press the chees grater hard because the Fels is soft and the "powder" won't be too fine it the grater is biting into it hard. (its harder to melt it down if the powder is too big grainy)
I recommend 1 bar for one jar full of water. And also to grate it down onto paper first and then as you mix the liquid you can slowly apply the powder and you won't be trying to grate into the jar as you are trying to mix it.
When everything is melted and mixed well, cover it up and let is sit overnight.
Next morning it will be hard jello....you can get your drill with the paint mixer and go to town on the jar to mix it/break it up.
In the end you will have a smooth jelly/creamy substance that now will be easy to fill into the quart bottle with a squirt cap on it.
(for some reason it won't turn hard after the inital cooling overnight and will stay pretty consistent in a quart bottle.)
IT IS HANDS DOWN THE BEST SPOT REMOVER OUT THERE! One qt will last you weeks. works incredibly well- with the squirt cap- to apply on stairs bullnose etc.