Im really interested to see how fermentation sciences are implemented into the game, both as a mechanic but also as an economic meta game.
We know that taverns will be a thing and those taverns will have to have something to consume in them right? Historically this was Beer, Wine, Cider, Saki or Mead depending on what region your in.
CoE has a very unique aspect in that based on the biomes and tribes they could actually separate different fermented beverages by region as you find in our real world. For instances the Mead (Mead halls!) and Beer were prominent through out northern Europe because of the climate and what grew there where as in Southern Europe wine was more of a staple (once again, mostly because of climate and growing conditions but also partially because of local cultures). In the far east you of course had Rice Wine ( Which is actually more of a beer than a wine in the way its processed). Then over in the Americas you had a variety of fermented beverages like Pulque (Mexico region made from agave) and Chicha ( Andes made from corn but also in the jungles there is a fruit version).
On top of that you have the interesting tribe dynamic. For instances the Brudvier- who we might associate as being more Gaul/Germanic/Nors like, would consume heavy amounts of mead and beer, but as we all know they can't hold their liquor so whats drank up in north? Maybe a light 3-4 percent apple cider or a light mead or something Similar to Ginger Ale / Root Beer?
The Dras on the other hand can't get drunk, at least not by conventional means, so maybe they are the first to start distilling and create the first liquors and spirts ( I bet them swamp folk could make a damn fine moonshine).
The Janoa would probably drink Chicha (as least the fruit jungle kind) and the Waerd in their desert like biome would likely drink something similar to Pulque (or if distilled Mezcal/Tequila) that is collected from desert plants similar to agave. And I believe its already been stated in the Legendary Tavern story point that agave is the root of their beverages.
The Toresk with their wetlands that provide "an environment which is rich in cultivatable land for both wet and dry agriculture." Seem like they might have rice or something similar and thus might have a solid foundation for Saki brewing.
The Kypiq might be cider fanatics and what about the Hrothi? Maybe they ferment malt into a beer or maybe they have some weird mushroom or algae they found they can ferment?!
Theres lots of room for SBS to get really creative here.
Also how about the actual mechanic of brewing and distilling, how complicated will that be? If I'm distilling and I fail or don't do as well do I mix the heads and tails in with the hearts and end up creating an inferior and potentially dangerous alcohol? Or what if all I want to do is sell quantity regardless of quality so I purposefully mix in the heads and the tales in order to have more alcohol to sell but potentially poising people with the higher methanol (methanol is what historically caused people to go blind when drinking moonshine or poor quality spirits) ?