wlp019 was a seasonal release this year. I hadn't seen it before, so I decided to give it a shot. Oddly, no specs are listed for this yeast under the 'Yeast Bank' section of whitelabs.com. However, when the strain is viewed under 'The Vault' section (it's a vault strain), it does list specs as: Attenuation: 67-73%; Temp: 66-70F; Floc: high; Alc tolerance: medium. Using those specs, I created a simple American pale ale recipe featuring 019. Being a pale, it should finish on the dry side, so with a supposed attenuation of 67-73%, I mashed on the cooler side at 148F, and extended the time to 75 minutes, to hopefully get a more fermentable wort, and a slightly higher attenuation. Well, I did! 019 performed like an absolute beast! With an OG of 1.058 and a FG of 1.006, it amounted to an apparent attenuation of nearly 90%. A bit higher than I'd planned for, making for a slightly drier than normal APA. I will definitely mash at a higher temp next time around. Specs vs. actual results aside, I really like this yeast. I fermented at 66-67F (on the low end of the range), and at that temp it definitely has more character than 001, which I like; a lot like 051. It seems to be similar to 001 in terms of attenuation, and I prefer that. The resulting APA, although drier, ranks among the best I've brewed. I'd love it if 019 was in regular production, because I'd use it over 001 or 051 for sure when brewing pales or IPAs.