Only a small crowd of lucky drinkers got a taste of Rhinegeist’s limited-run String Theory funky blonde ale, which seems to have totally sold out at the brewery and all known retail shelves. (Head to Rhinegeist’s website to check availability on the String Theory landing page.) There’s more than a good chance that you’ve never heard of its special ingredient — brettanomyces — but it is the presence this wild yeast, commonly found in natural wines, that contributes to a unique farmhouse leather impression unlike anything achieved by most beers on the market. The 7.15 percent ABV, 18-month-aged corked and bottled beer is described by the brewery thusly: “pointillist particles of toasted oak propagate through space and interact with avuncular malt constellations.” Buy without hesitation if you see this bottle in the wild. Rhinegeist, 1910 Elm St., Over-the-Rhine, rhinegeist.com.