I don't understand this either, I've been using Devardi for awhile now and I don't have any more issues with this glass than any other I've used. My encased beads are just fine. I use ivory silver stringer, 96 frits, of the several beads I've had crack I think it was me gawking at the bead to long. I work on a HotHead with propane, and don't have the firepower to burn the snot out of this glass. It says right on the Devardi website not to cook the hell out of this glass. I have worked with most of the colors, I warm my rods, and anneal my beads at 960 in my Chili Pepper. I've read a ton of posts about cracking beads and Lauscha. Never used it, Never gonna. I have about the same success rate as Sonja. I know I haven't lost more than 3 or 4 rods myself to shattering, and no more cracked Devardi beads, than any other line of glass. I'm making big whoppin focal beads, and I really work it long in the flame. You'd think I'd be having all sorts of problems, and I'm not.
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