If you are making small round sterling silver balls try this.
If you are using a an acetylene torch do the following.
Place the silver onto a charcoal block, using a small flame #3 tip
(just large enough to melt the silver), melt the silver and when it
starts to form a ball, take the flame away and let it form, now put
the flame back unto the ball and re melt to a bright red, now drop
the flame directly into the middle of the light blue flame coming out
of the tip of the nozzle, you will find that the silver will turn
gray, that is because the middle of the flame is gas that is not
started to burn and is cold, now take away the flame, cool and
If you are putting a ball on the end of a silver wire hold the
silver in tweezers and heat the end of the silver till it forms a
ball and do the same thing, but the ball into the middle of the light
blue flame. This will take a little practice but you will get the
same results. A good smooth ball, more like a tear drop.
If you have any questions about this procedure let me know.
Have a good day.