There have been previous discussions about the use of vanilla in the wine of the Kingdom of Judah. Vanillin is an organic substance that is extracted from the vanilla bean. It can also be found in lower concentrations naturally in grapes and other organic substances. However, the higher concentration of vanillin found in at least five recovered ancient jars can only be attributed to the import of the distant spice vanilla.
Here are good articles on the findings.
http://www.sci-news.com/archaeology/ancient-vanilla-wine-10794.html
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0266085