I brewed this up for the second time about three weeks ago. Hit my numbers (OG 1.070) and pitched my pack of Notty on top dry. It took about 36 hours to really get going, but no worries-- I know how yeast can be. I let it ferment in my swamp cooler at 66 for about a week, then pulled it out and let it ride in the guest bathroom around 68. Two days ago I went to dry hop, checked the gravity and was dismayed that it read 1.020! I've never had a problem with Notty attenuating before. I know that this is near the lower end of its attenuation range so I dry hopped per recipe, closed up the fermenter, gently roused the yeast and raised the temp to 74 to see if I can't squeeze a couple more points off in the next ten days.
Anyone else have any issues with Notty lately? I sourced mine from Midwest and did not note the production date so maybe it was old. I've been using the same hydrometer for my last 20 batches so I know that it is calibrated. The gravity sample tasted fine body and flavor wise so I decided to proceed. Pretty sure it will turn out fine just wanted to share my experience.