Before Prohibition, Jim Beam was known as Old Tub. The name change was probably for the best. Old Tub Kentucky Straight Bourbon is bottled without chill-filtration. It is also bottled in bond. Previously, Old Tub was only sold in 375ml bottles at Jim Beam's American Stillhouse shop in Clermont, Kentucky. It is now available in the full 750ml format which you can think of as being similar to a baby Bookers in style.