EMI_CHEF: in your case, US customs rules are more relevant that Argentinian ones. You can import one liter of wine duty free. Anything above that needs to be declared and you have to pay duty (which is very low, but the process could be a hassle). All food must be declared. Most meat products are prohibited and will be confiscated (there are dogs trained to sniff them out). Buen viaje and welcome to the land of the free, buddy!