Maker's Mark Wood Finishing Series 2022 Release BRT-02 Kentucky Straight Bourbon WhiskyMakers Mark always hand rotated their barrels from the top to the bottom of their rickhouse. This equal exposure to temperatures gives each barrel the consistent flavors Makers Mark is known for. BRT 02 is inspired by the cooler bottom of the rickhouse and uses French oak staves to dial up the flavors developed over its final years of reaction.