I took a tour at a small brewery several months ago, and I wish I would have thought to ask this, but I didn't. The brewery had a 15 bbl system, but they had several 30 bbl fermentation tanks. My question is, how do they ferment their batches? Obviously, they need to brew two batches to fill their fermenter. Does the first batch just sit there and wait several hours while they make the second batch and pump it into the tank? You would think that they'd want to pitch the yeast right away, and not have a batch of boiled, cooled wort just sitting there. Any thoughts?