And for reference, here is what ASB had to say about their exploding cans.
Thanks for reaching out.
The problem is very simple: there's a TON (literally, over a metric ton in this batch) of fruit that went into this batch and if cans are not stored cold, they will referment in the can and cause the situation you are experiencing. There are no bugs, we can assure you of that. After Prickly Pear was released, we put on subsequent kettle sour cans, clear as daylight "Warning: Contains Lots of Fruit! Must Be Kept Cold At All Times" (refer to Tayberry cans, which I see are also stored in your garage).
Fine to replace your cans, send me an address and we'll mail you a 4-pack.
But I will say, I'm a bit concerned about seeing other fruited sours in your garage, and you even have some Slice Joint being stored warm as well. These beers are designed for relatively quick consumption (within a month) so that they can be enjoyed at peak freshness. They deserve to be stored cold, as well. Aroma / Flavor / Overall Quality will degrade at warm temperatures, especially when stored out for several months. The YoE beers are fine to cellar, and will actually improve with age and gain complexity over time. But not Alvarado Street beers. This is why we come out with new cans each week, so they are consumed fresh.
Hit us back with an address, and thanks for understanding where we're coming from.
It never dawned on me that they didn't fully ferment out their fruit, and therefore any can deformities will likely result in explosions due to the continued fermenting.
This makes sense though (re: fermenting fruit) because their kettle sours are very much fruit forward brews, and now I know. I wonder, then, how they manage to get certain levels of carbonation? I assume they're not canning while fermenting on the fruit, but their response leads me to believe otherwise. Maybe they maintain an extremely low temperature while adding in the fruit and force carb in the cans? That would prevent the fruit from fermenting, but pull in all the flavors?
