So, I'm fairly new (just brewed my 4th batch this weekend), and I have some questions about my hydrometer. On my first few batches, I felt like it was giving me kind of low numbers, but I didn't think much of it.
This weekend, I brewed a very strong imperial pale ale. The kit says the OG should be around 1.080, and I even added some additional fermentables on top of that. Had a fairly uneventful brewday, topped it off to 5 gallons, "rocked the baby" thoroughly, and I got an OG reading of 1.064.
I tried the hydrometer against pure water and got the standard 1.000 reading. Any idea what's going on?