A while back I tried the Cellar Science English yeast strain and I recall a slow start.
Well, I pitched yesterday about 9:30-10:00 and here it is nearly 24 hrs later and I got nothing. The temp did increase by a degree or two but that’s it. I usually see a coorespnding gravity drop soon after a slight temp increase when using other yeasts.
I have a pet peeve with slow starting yeast. I am about done with Cellar Science and plan to stick with Lalleman or Fermentis.
Edit: I gave up on the Cellar Science English strain after 27+ hrs. I pitched a PurePitch Pack of WLP001 which is remarkable in that the old axiom is to keep dry yeast on hand in case of emergency. This time, I used liquid yeast due to dry yeast failure which is a first ever for me.