On the frontier, which in those days was western Pennsylvania and New York, barter was the rule, and the frontier functioned on the alcohol standard. A barrel of beer, ale, porter, stout or cider had a fixed value in terms of flour, salt beef or a side of bacon. So did a cask of brandy or whisky.
This is why the federal excise tax on whisky and the resulting Whiskey Rebellion was such a big deal.
But in a pinch, that gold you spurn will buy you a well-defined quantity of spirits. Some things never change.