I haven't yet purchased a hydrometer and have typically just went with about a 3 week primary. On my current batch, I have a desire to rack to secondary and dry hop. As of tomorrow, I'll have 9 days in the primary and there's no activity in the air gap. Do you think I'd be ok to transfer to secondary tomorrow? I was planning to leave it there for a week.
After much reading here, I'm going to get a hydrometer but I'm looking for thoughts at this stage of the game.