Fusing into small molds

[Janice]

I have a new small jewelry casting mold, a teardrop shape with a raised area for a hole.  (My first experiment with frit)  I filled it with frit and when finished, it had “burrs” all around the edges from the frit.  I fired slowly to 1600 degrees and then left it until cool.  Did I not fire it hot enough or what?  I’m new at this.

Thank you,

Jan