port

[Kcwhippet]

I really doubt the Paul Masson wines could have lasted in good condition for 20 years. The port is made by stopping the fermentation of the wine by adding brandy. The process you referred to is called the solera method and it's used to make sherry in Spain. As others have mentioned, you're better off taking something else with you. I'd second the suggestion of Zinfandel by WoW or even the Zin port Drew mentioned.