Heaven Hill Grain to Glass Wheated Bourbon Second Edition - 106.6 ProofSecond Edition 106. 6 Proof 700ml The second edition of Heaven Hill Grain to Glass Kentucky Straight Wheated Bourbon Whiskey was aged for six years at Coxs Creek, in rickhouses W5 and W6 on the third, fourth, and fifth floors. It was bottled at barrel proof without chill filtration at 106. 6 proof. Heaven Hill Grain to Glass represents the distillery's long standing commitment to craft, transparency and quality. Each year, they select a specific corn