AN IMPERIAL RED ALE THAT’LL LEAVE YOU SPEECHLESS Available in 6 Pack/12oz bottles only. Our Tongue Buckler Imperial Red Ale doesn’t pull any punches. This is a big brew with hops and malt in extreme abundance. The I.B.U.’s (International Bitterness Units) alone test the limits of your palate. Yet while the timid should take warning, Tongue Buckler generously rewards the bold with an exceptional ale experience.