Immediately after I had stuck my wine thief into the fermenter to get a hydrometer sample, I noticed a small amount of mold on the outside of the fermenter lid – I had a early blow-off. I wiped it off with a rag soaked in PBW and continued getting my sample.
The FG is down to 1.09 which is about right and the beer has been in the primary fermenter for 16 days. I had planned to leave it for 21 days, but in view of noticing the mold, should I suspect I may have infected it and bottle it tomorrow or will a few extra days in the fermenter make any difference from a sanitary standpoint?
The uncarbonated brew currently tastes fine.