How long should it take before you see activity on a starter? I made my first last night with 1.5 L of water and 150g of DME around 6pm. I had hoped that this morning it would peak (I've read 12 to 18 hours) and I could start my batch today. But I didn't see anything in the growler jug I used. One problem is my growler is very dark brown glass so it's hard to see anything clearly (next time use clear glass) but I'm pretty sure there isn't any activity. I've shaked it a few times last night and this am to see if I could see foaming but nothing yet. From what I read in 24 to 48 hours you should be able to store in the fridge if you want so I think by now it should have hit it's peak. This was my first order of liquid yeast from AHS and I fear the temps killed it even with a cold pack.
If dead, I suppose the good news is I did the starter and didn't pitch directly to my batch.
If dead, I suppose the good news is I did the starter and didn't pitch directly to my batch.