Sprouts barley into malt (1 → 3). Without it the distillery auto-buys malt at £10/unit from the market.

Cultures yeast in-house. Without it the distillery auto-buys yeast at £8/unit from the market.

A reliable spring on the property. Adds a 5% premium to every barrel sold thereafter.

Crafts empty barrels for the distillery. Without it the distillery auto-buys casks at £400 each.

Turns malt and yeast into new-make spirit, sealed into an empty cask. Any inputs you don't stock are auto-bought from the market at a premium.