I have an idea about alcoholic bewerages, in H&H we have only two : wine and beer but beer needs tankyard made from tin, but you also requiet copper/iron, so why not tankyards could be wooden, clay, ceramic and glass? Of course it will cause tin tankyard useless, so the other one must lower QL and buffs of beer.
I think you want to ask - why you won`t buy metal ?
Becouse metal is rare, and mamy people don`t want to trade it, especialy when they have other valuable items.
H&H is medieval styled game so i have another idea, I don`t know how it call in english but i think it is - mead, a wine with honey.
That could give the same buffs like wine but also will add some food.