Greetings from a frequent CX poster.

I have a LIS-MAD flight coming up on Iberia shortly, and am planning to check as a suitcase a 12 bottle cardboard wine shipper. (Filled with 12 lovely bottles of wine). It's the same style box UPS uses to ship wine. Very secure, and never had breakage issues.

I frequently bring back cases from the US to HKG in this manner. I am less familiar with Iberia and intra-EU regulations, if applicable. Anyone have any experience? Is it okay to check a case of wine as my (sole) piece of luggage on Iberia, from LIS-MAD?

I am OWE (via CX) if that helps. Thank you in advance.