Well this season, in year of our Beer Lord 2021, I can all but confirm there are at least two batches!!
The first batch to hit Fresno was canned on 10/08/21.
It was looking like that was it because several six-packs purchased later resulted in the same date.
But today (after it sat untouched for a week in my fridge as I moved through previously bought sixers) I have discovered a second batch:
11/05/21. It’s at least a second canning date. But with that large of span between dates we can assume that’s a different batch.
Does Sierra have a third batch in them before Celebration goes away? We’ll keep checking.
By the way, the second batch tastes the same as the first, as far as I can tell.
UPDATE!: There are even more batches. This from an Untappd friend, there is a 10/5 & 10/21 batch!:
AND, Nick from the Perfect Pour found a batch at Costco that is from the end of September! So that is five batches and counting!