IanC and Dave, as a a seasoned cider drinker, even from "modern" pewter Cider tastes tainted, I just dont like Antimony Citrate (or Malate) anymore than Lead Citrate(or Malate)which are the 2 most likely candidates for the acid attacking the metals!!
My Famous tankard, The "Holy Grail" is stainless steel!!!! which doesnt dent, bend out of shape, is handy for twatting the odd obnoxious drunk with, and has a nice shine, and imparts NO taste to the contents.