Red Glaze

I emailed Curt Buethe of Urimusic Pottery to ask him about red glazes, and basically he said it's a no-go on the red if we want to create it ourselves: "I am doing work on clay to get reds and oranges at cone 5, not cone 6 like you are doing. You will have a very hard time getting reds at cone 6 without extensive experience with copper reds at cone 6."

So probably if we want red it would be better to buy a little bit instead of trying to make it.