1 hour ago, Jim D. said:As displayed in the accompanying photo I am still having trouble with bits of colored cocoa butter staying in molds. The pattern is the same, suggesting there may be a single cause This is driving me crazy as the saga goes on and on, and I am looking at every possibility to eliminate the cause. My latest inquiry brings me to the use of silk.
I have tried using the warming tray method (described earlier in this thread), but with the heat barely on. It's better, but I have a terrible time getting the excess CCB off the molds and I continue to get the little bits of CCB staying in the cavities. I mostly use my Fuji sprayer, and there is no question it sprays out a lot of CCB. I have tried moving the gun farther away, but that didn't seem to make a difference in the coverage. All these explorations have brought me to the tempering possibility, namely, is the CCB overtempered and is therefore crystallizing immediately? I watch experts decorating shells, and they casually turn a mold upside down and easily wipe away all the excess CCB. I cannot do that. So I am brought to a new question: is it possible to add too much silk when tempering CCB? I don't weigh it, I just put some in (following the example of the esteemed inventor of the EZtemper).
I don't temper coloured CCB for the Fuji (or any airbrush) - 35º C.