The secret is to slump in

[Stephen Richard]

The secret is to slump in stages.  Ist a shallow one, then a medium one and then the deep one.

I have seen descriptions of placing whiting in the deep mould for the first slump, emptying some and doing a second, and then the final slump without whiting.  This saves having to buy three moulds.

 

Stephen Richard

blogs at: http://www.verrier-glass.blogspot.com/   and  http://www.glasstips.blogspot.com/