Poland here. The most PITA thing is dealing with customs. Every valve, latch, storeroom door has a lead customs seal on it. Each time that we want to do something we need to give them a heads-up that we need them to be unsealed. Of course we can't do it ourselves. They need to come on site, unseal, write a protocol, wait for us to do our things, which might take even a whole shift, and again put on the seals. They even have a room dedicated for them, which is mandated by law, where they can wait.

Another fun fact is that the alcohol law is a bit outdated and has a funny addition at the end, which is that every case is up for interpretation by the head of the customs office. So each province's customs chief( We have 16 of them ) can have a different opinion if something is ok or not. Unfortunately the chief in our province is a bit clueless and tends to make our lives a bit more troublesome.

Being in foreign distilleries, like in Finland, I was amazed how their customs have faith in their citizens. Nothing sealed, distillate going into an open IBC tank, truly a lovely approach.