"Mark F" wrote in message
news:qZ%Oj.80057$Cj7.71472@pd7urf2no...
wrote:
Labs around here aren't re-using take-outs. Too many inclusions
of things that create minor spattering and surprises.

For a variety of reasons that is exactly correct. In general, dental labs
only use new alloy. They send all used metal to a smelting/recycling facility.
Once a year or so, they even roll up their old carpets and send them out for
smelting (like the golden fleece). Even the dust from their vacuums may get the
royal treatment.


Vaughn