Ziggy,
I have already thought about this, according to THE HOMEBREWERS GARDEN 800 square feet can yield enough for 5 full allgrain batches. An acre is 43,650 sf , that's about 55 (800 sf)'s
THat's 272 brews. Now I'm thinkin about Maris Otter for half and another american 2 row on the other half and maybe a little wheat for a few brews too. Now I gotta find a tractor.
just thinkin aloud again. Actually get 20 vines and you can get 20 lbs of hops.