I always feel like I'm in one of Lauren's chem labs when I am testing out a new line of glazes. I start with 1000g of a base and divide it out into 10 cups. I label each cup with the colorant and amount of colorant and then apply to test tiles and fire. I'm looking for a transparent glaze to go on my white clay so I sacrificed a tray and tested all ten on one piece this time mostly because I didn't take the time to make up some test tiles.
I like to use a dry erase board to write down my recipe and the calculations to scale it up to the amount I need. Most of the materials look similar, so I cross it off as I go in case I get interrupted in the middle. I write my recipes down permanently on large index cards that are filed under colors. I think it's easy to find a recipe I like and I can add notes on the back of the card.
I love this tool. It's an emulsion mixer and I think I paid $30 for it at target. I use this to mix all my glazes. It fits in the cups as well (barely). I just run it in the bucket of water to clean it off each time. Very efficient.
I did 2 batches of test glazes before I was disrupted by life. It has been so cold here and it's not looking like it's going to get better anytime soon. It's the kind of cold where a bleep word uncontrollably flies out of your mouth every time you walk out. I have a rental house next door and they are having problems with the furnace with electric bills at $700! I called a heating and plumbing service to come over and inspect it and they wanted to replace the air exchange unit which is from the 80's. I can handle that, what I couldn't handle was the pricetag. I called a couple other HVAC guys to give me a second and third opinion. At least they still have heat and I don't have to make a decision today. That house is killing me. I have replaced the roof, windows, added gravel to the driveway, painted and had the outdoor pipe to the sewage dug up and replaced - THIS YEAR! Rental property is certainly not for sissies!