A taproom pour costs more than the same beer in a bottle because the taproom is selling you the last few hundred millilitres of a much larger operation, and a growler fill costs less per millilitre than a glass for a plain structural reason rather than a romantic one. The brewery's own cost per bottle is close to the same either way, since the liquid came out of the same tank. What changes between the two is who pays for the glass, the keg that had to be moved and connected, the water and electricity behind the pour, the bartender's time, the floor space the beer is standing on, and the packaging that a filled growler replaces once it is full. Once you break the taproom price into those parts, the difference stops being a mystery and becomes arithmetic you can do for yourself at the bar.
The Volumes Are Not Equal
Start with the arithmetic, because the millilitre is the only honest unit for this. A standard bottle in Canada is 341 mL, a standard pour is 473 mL, a large bottle is 650 mL, a litre growler is 1,000 mL and the two-litre growler is 2,000 mL, and a half-barrel keg holds roughly 5,866 mL. A 473 mL pour is therefore about one and a third bottles, and a two-litre fill is nearly six of them. Any comparison that mixes a per-bottle price with a per-pour price is comparing different amounts of beer, which is the single most common reason a taproom price looks outrageous when it is merely a small pour.
| Format | Volume in mL | What you are actually paying for |
|---|---|---|
| Bottle, standard | 341 | Liquid, bottle, label, cap, carton and freight already folded into the shelf price |
| Pour in the taproom | 473 | Liquid, glass, one connected keg, a bartender's time, utilities, cleaning and floor space |
| Bottle, large | 650 | The same bottle economics with more liquid and no service cost at the end |
| Litre growler fill | 1,000 | Liquid, a fill sleeve or plastic jug, and a seal rather than a crown cap |
| Two-litre growler fill | 2,000 | The cheapest millilitre the brewery sells, because the packaging cost is spread over four times as much beer |
What A Taproom Is Actually Carrying
Every dollar in a taproom price is doing some work, and it helps to sort them by whether they scale with the beer or not. The brewery's cost of making the liquid does not change whether you drink it standing up or at home, so it is the fixed part of the comparison. Everything else scales badly. A glass is a small but real cost per pour, and so is the wash cycle that follows it. The line has to be cleaned on a schedule whether the tap is busy or not. The tap handle and the coupler need to stay connected to a keg, and a keg of beer that is not being drawn off still occupies a spot in a cold room that the brewery pays rent on. Bartending time is the largest cost most people do not think about, because a poured glass is a product with a person attached to it, and so is a washed glass afterwards. A brewery without a taproom can sell a keg and be done with the transaction, and the saving shows up as a lower price for the same beer.
The other side of the ledger is worth stating too, because it is genuine and not a justification. Money spent in a taproom is money that does not leave the region, and it is often the only revenue line a very small brewery has. A taproom also solves a disposal problem, because beer that is not sold on site has to be sold somewhere else at a price set by somebody with more bargaining power. Neither of those points changes the arithmetic, but both explain why the price is where it is rather than an accident of greed.
Why A Growler Is Cheaper Per Millilitre
The growler wins on three counts, and the first two are simple. It carries more liquid, so a fixed amount of packaging and staff time is spread over more beer, which is the definition of a better unit cost. And it carries the beer out of the building, so the glass, the washing, the bartender and the occupied floor space all disappear from the transaction. What you take on instead is the third cost, which is the beer itself, because an unsealed or badly sealed jug loses carbonation and takes on oxygen quickly once the head of gas is disturbed. That is a quality cost, not a money cost, and it is why a fill that is going to sit in a car for two hours is a different purchase from one that is going into a fridge and being drunk the same week.
How To Do The Comparison At The Bar
- Ask what the fill is filled with, whether it is a plastic jug or a glass growler, because the seal type and the material change how long the beer will hold its gas.
- Do the division yourself. Take the price of a pour and divide it by 473, then take the price of a two-litre fill and divide it by 2,000, and put the two numbers side by side on a napkin.
- Compare against the price of the same beer in the largest bottle the shop sells, which is 650 mL, since a bottle is the format with no service cost inside it at all.
- Remember what the pour includes that the bottle does not, which is a glass you keep, a fresh pour rather than beer that has been opened and sat, and the fact that you do not have to carry it home.
- Check whether the taproom offers a flight, a sampler or a fill discount, since sampling formats are priced to move volume and are often the cheapest way to taste a whole range.
What Changes When The Beer Leaves The Tank
One more cost sits underneath all of this, and it is the reason a taproom pour is often fresher than anything you can buy anywhere else. A keg is not a permanent state. Once it is tapped, the beer inside is exposed to the gas pressure pushing it out and to whatever is left in the line, and a brewery that cares about what it is serving will drop a keg rather than serve a glass that has been sitting on a coupler for days. A bottle has the advantage that it was sealed once and then protected itself, which is why the technique described in our piece on bottle conditioning matters so much to the beer that ages at all. The practical result is that a brewery with a busy taproom has a reason to move beer quickly, and a brewery without one does not.
So the answer to why a pour costs more is not that the brewer is charging you for the foam. It is that the glass is the smallest part of it, and the millilitre you are actually being sold has carried a glass, a connected keg, a clean line, an hour of somebody's wage and a square metre of floor across the counter before it reached you. Once you price those things honestly, the taproom looks like what it is, which is the most direct way to sell beer there is, and the growler looks like what it is, which is a discount you trade some freshness for.
