i should also like to point out that brewery gives bad health as well, a lot of people here don't have a very good grasp of history, I'm no expert, but even i know that drinking 'fresh' water was very bad for you back in the day, and anything that could clean it up was welcome, even if it did have consequences for your liver later on, the benefit was much greater, you didn't catch and spread diseases among your friends, people seem to look back on history with their mods and assume that everything worked the way it does now, but theres a reason why a lot of these things where invented back then, they didn't have much better to keep themselves healthy,
as for my 'mod' the only thing that really needs changing is the XML, its not compatible with any XML editing mods, but the XML is very easy to mod if you have a good mastery of the quick find feature in a generic text editor.
I didn't mess with the rarity of the tea itself because I'm not sure what would be a good number, i tend to play on prebuilt maps so it wasn't an issue with me