Board Thread:Questions and Answers/@comment-1781513-20131122215034/@comment-1173941-20131122220908

The taste of food and drinks within SAO are not al like those in the real world... Asuna for instance, had to put together a variety of strange ingredients before she perfected a Soy Sauce recipie, something that most people in Japan are very familiar with.

So basically, there should be a variety of foods that don't even exist... of course, I could be all wrong, and it's actually some tea they have in Eastern Asia..

Short Answer: Probably a made-up drink, or something we don't know about,..