This week, Buffalo Trace will release the second batch of bourbons produced for the Single Oak Project. If you aren't familiar with the Single Oak Project, go here and here.
This release will explore three different variables, recipe, grain size, and char level. Some of the bottles contain bourbon made with rye and others with wheat. The barrels themselves were made from different trees, each with varying degrees of thickness to their wood grain, from fine to very coarse. These barrels were charred at either a number three or number four char level to determine how the burn will alter the taste. All other variables in the experimental project, such as the entry proof, stave seasoning, tree cut, and warehouse location remain constant.
Grain size was one of the variables in the original release. The other two are new with this release.
The second release is made up of barrel numbers 29, 31, 61, 63, 93, 95, 125, 127, 157, 159, 189, 191.