It's an odd, curious name, but Bathtub is a cracking little drop. The name 'Bathtub' is derived from the old days, when compounded gins were topped off from water from a bathtub (the bottles were too tall to fit in the sink). Nowadays (and quite ironically), the method of 'cold compounding' doesn't use bathtubs, and it's actually one of the most expensive production techniques. Here's a little drop of history for you!!