I think your title explains it all....
If your beer has been fermenting for a few days, the alcohol and yeasties should be able to fight off anything the pen cap had on it. You're good
Kegs: Tri-Peppered Saison and Sunset Orange Kolsch
Future:Something new, SMaSH perhaps?
2013 Previous: Sunrise Honey Rye Pale Ale, Dark Skies Black IPA, Sunset Orange Kolsch, All Hallow's Eve Pumpkin Ale, Raining Hops and Dogs IPA
Dark Skies Black IPA - 2nd Place at a local comp. Score of 39 from a BJCP judge
GT Keezer Build