Wisteria was a breakthrough color for the boro palette: a dense opaque purple that is only translucent when thin. Textured rods smooth out in the flame. Like all of the opaque Candy colors, Wisteria prefers a soft, enveloping flame. Its not boily, but it can have some air in the rods. If you put it into an forceful flame when cold, the air rushing to the surface can mimic boil. This is why we suggest working slowly and in a bushy soft neutral flame, to allow the occasional larger air bubbles to escape as you work. While many people have great success with these colors, the opaque Candy color line is known to have a slightly higher COE; please test in your application.