Comment

Comment by Jeff Poulter on September 8, 2014 at 12:20pm

Sorry I was away for the holiday, and for some reason I couldn't post from my phone. This pot is from back when I was going to one of the local pottery studios 'cause they did ^10R.  The middle part that the JJF is layered over is a ^10 Ravenscrag Iron glaze and the bottom is a studio Shino that got mixed up wrong by one of the assistants.  It turned out to be a kind of an iridescent translucent brown glaze.  Before they threw the 30 gallon garbage can of it away, I managed to talk the owner into letting me have 5-6 gallons of it. I really like it but it can never be duplicated because the assistant doesn't remember what they screwed up.  This pot was fired in the big gas kiln so I'm sure it was a long cool down.  I believe it was JJF with black iron as I recall. Off the top of my head, I would say the clay is either Big Red or Maya Red from Laguna as that is what I was throwing back then.  Hope this helps,  jhp

Comment by Norm Stuart on September 2, 2014 at 1:44pm

I haven't noticed Jen's Juicy Fruit to be much affected by a slow-cool.  But I can tell you definitively that Jen's Juicy Fruit does not run much at a true Cone 6. 

I've seen photos of some examples of JJF from what was claimed to be a ^6 firing with nice flow, and I can guarantee you that that particular firing got a lot hotter than the person posting the photo believes. Ash glazes are the same, so need to be "fake ash glazes" if fired to cone 6.

We had someone at our studio make a piece colored with horizontal bands of multiple mason stains mixed with gerstley borate - our home-made underglazes -  which doesn't have any flow of their own at Cone 6.

As an experiment last week he covered the piece with a wash of concentrated Sodium carbonate and Potassium carbonate (soda ash and pearl ash).  When fired to a true Cone 6 with a 6 hour slow-cool the very surface of the color bands flowed by gravity perhaps 3/8 inch at most.  I suspect it would have flowed a little more had that much sodium and potassium been mixed with the underglaze before application, and he probably would have developed some crackle as well from the sodium.

Wood ash glazes have nowhere near this much sodium and potassium, so don't perform at Cone 6.

Comment by Chantay Poulsen on September 2, 2014 at 2:08am

Jeff, did you use a slow cool down on this? I was planning to try this recipe out. I thought it would look more red. Also, what clay body?

Comment by Sherri Donlon on August 28, 2014 at 3:05pm

: )    Thanks,  Jeff!  I'll learn all this stuff eventually.

Cheers!

Comment by Jeff Poulter on August 28, 2014 at 2:05pm

It's Jen's Juicy Fruit.  It's one of the Stephen Hill glazes.  Seems to work at both ^6 & ^10.  jhp

Comment by Sherri Donlon on August 27, 2014 at 10:43pm

JJF?  Sorry, I'm a newbie...