Yikes! That’s too many for me. I’d have a hard time keeping it all straight. I usually will only have 2 at one time. Right now I have 3 bulk aging. I only own three 6 gallon, and two 5 gallon carboys.
Label EVERYTHING! I used to believe I could remember which was which ... I was wrong, totally wrong.
Last weekend I started two large batches of Grenache and two of Tempranillo. These are REALLY easy to tell apart, but I made fermenter labels with index cards, a Sharpie, and packing tape. I also have small batches of 3 other grapes, which are NOT easy to tell apart. In these cases, the labels are required. I also make carboy labels with paper, tape, and string. Barrels get painters tape labels.
I read some of these posts and guys are talking about having 6-8 or more carboys but it totally makes sense to have bunches if you are letting the wine sit and clear properly. It takes time.
All true. And it depends on personal needs and desires. If you're going to make a 1 US gallon batch every week, you need 50+ jugs.
Up until recently, I had 8 batches going -- bottled 6 in the last 2 weeks, and have 2 remaining. Last weekend I started 7 batches which will condense into 3 batches (two of which are 18+ gallons each), and started 2 more today. Once the last two of the 2021's are bottled, I'll have 5 batches.
Other folks are making 60 US gallon barrels of a single batch.
Figure out what you want, what are your goals? From there determine timelines (e.g., aging reds for a year), how many batches you want to make, and then determine the number of secondaries you need. Also take into account what you have room for -- not just primaries and secondaries, but finished wine. It's really easy to make a lot of wine, then realize you don't have bottles to bottle it in, or places to put those bottles.