Originally Posted by doodlevon
I'm about to make to the transition from extract to all grain. Can you make barleywines or stronger ales in the 5 gallon coolers or should i just get the 15 gal one. I prefer making the high octane brews.
Welcom to the forum... and AG brewing. This is a pretty frequent question here. BobbyM has a chart on gravity you can expect out of your mash-tun based on efficiency and size. See thread
I've got a 5 gal myself and I'm limited to about 5 gal batches w/ OGs of ~1.055. That was at about 75% efficiency. Personally I'd go big. I really wish I'd held out for a larger mash-tun and now I'm looking at spending another $50 for a 72 qt cooler so I can do some REALLY big brews.