RedinOx^6Test5

getting darker. 

What kiln do you test with?

I use a 0.25 CF primarily: it holds 2 of these test tiles. I also use a 1.75CF Paragon that has 6500 watts. I use that for multiple tests, small pieces, and small batches of crystalline liner tiles. The 1.75 is my favorite, it has 3800 watts per CF: twice that of ordinary kilns.