Making the wine: winery costs and economies of scale

Economies of scale

The average cost per bottle is total cost divided by the number of bottles. Because fixed costs are shared out, average cost falls as volume rises. A winery with $300,000 of fixed costs adds $30 to each bottle if it makes 10,000 bottles, but only $3 if it makes 100,000. This falling average cost as a business grows is called economies of scale.

Scale is why very large wineries can sell drinkable wine at low prices: they spread huge, efficient equipment over millions of bottles and buy glass and grapes in bulk at better prices. Small wineries cannot match that, so most compete on something else: a special site, a hand-made style, a story, or direct contact with customers.

Renting a winery: custom crush

Building a winery costs millions. So in California and elsewhere, many small brands do not own one at all. They pay a custom crush facility, a shared winery that makes wine for many clients, to process their grapes for a fee per ton or per case. The brand turns a huge fixed cost into a variable one: it pays only for what it makes.

That lowers the risk of starting out, because a bad year does not leave a costly empty building. The trade-off is less control over timing and equipment, and a higher cost per bottle once the brand grows large enough that owning its own winery would be cheaper.

The cost of one more bottle

Economists also talk about marginal cost: the extra cost of making one more unit. For a winery with spare tank space, the marginal cost of one more bottle is just its variable cost: the grapes, the glass, the cork. The building and the winemaker's salary are already paid for.

This idea explains some surprising choices. A winery with wine left over at the end of the year may sell it cheaply to a supermarket or as bulk wine, at a price below its average cost. That sounds like a loss, but as long as the price is above the marginal cost, the sale still brings in money towards the fixed costs that must be paid anyway. Selling below average cost forever would sink the business; doing it now and then to clear stock can be sensible.

Marginal cost can also jump. Once the tanks are full, making one more bottle might mean buying a new tank or renting space, so the extra cost of growth comes in steps rather than smoothly.

Break-even: the first target

The break-even point is the number of bottles a winery must sell for revenue to exactly cover all its costs, with zero profit. Below it, the winery loses money; above it, each extra bottle adds profit. To find it, work out the contribution per bottle: the price minus the variable cost. Each bottle's contribution helps pay off the fixed costs. Divide fixed costs by contribution per bottle and you have the break-even volume.