Probably more of a plaster/lost wax technique for the silverware, less loss of silver in the finishing process. A simple sand cast of ingots would be fine.
I would tend to agree , of course during the finishing process you'd save the scrap , dust etc. for resmelt -remelt.
Jewelry gold i.e. 14k and the like can be smelted with a hot plate and nitric , the gold will end up as "curds" that can then be melted down into ingots whatever , the solution gets saved and you then suspend a copper plate in it and the silver in the alloy will precipitate on the copper and can be saved for melt.
14k is only 58 and one half percent actual gold.
On another note , have you ever saved used mower blades , leaf springs and the like and forged and finished 'em for knives and tools? One can make a pretty fair Parang or Bolo machete out of a used mower blade.