The paranoia over Starbucks is unfounded.
PBA and I may not agree on everything, but he is a pious Jew and very sincere and ehrliche.
I’ve read the CRC reports on Starbuck’s, and I think one can logically conclude that the coffee is acceptable, especially since:
a) Only two utensils in Starbucks ever come into contact with non-kosher. Therefore, we can rely that any non-kosher is nullified in the cleaning process.
c) The non-kosher sandwiches are a davar gush (a hard item). However, many still consider it a kli sheini which does not transfer taste.
d) Soap is used in the cleaning process which would allows one to rely on Nosein Taam Lifgam (The non-kosher taste is rendered inedible by the soap so it does not transfer.)
f) All the equipment is sanitized after being cleaned.