Which gal arrack bottle size is best value

Gal arrack is priced nearly in proportion across the three sizes. A full bottle costs roughly US$10 to US$14, a half roughly US$5.50 to US$7.50 and a quarter roughly US$3 to US$4. Buying the same 750 ml as four quarters costs a dollar or two more than one full bottle, and as two halves a little less than that.

That small gap is the cost of packaging. Glass, caps, labels and handling cost almost the same for any bottle, so they are a bigger share of a quarter than of a full bottle. Excise duty, the largest part of the price, is charged on the alcohol, so it is the same per millilitre whatever the size.

In other words, the savings from buying bigger are real but modest. They matter for a large group, and hardly at all for two people.

For one person, the quarter is usually right for a single evening and the half for a few evenings. For two people, the half bottle is the natural choice for one or two nights, giving seven or eight generous drinks.

A full bottle for two only makes sense on a stay of three nights or more in one place, such as a beach villa or homestay. Otherwise it tends to travel half-empty between hotels, where some properties also discourage outside drinks in public areas.

Couples who want to try different styles can buy two quarters, one of gal and one of old arrack, for about the price of a half.

For groups, the full bottle wins. Four or five people drink their way through a full bottle over an evening of tall drinks with food, so a villa group of six over three nights might need three or four full bottles.

Buying full bottles also reduces trips to the shop and the number of empties. A practical approach is to buy one full bottle per four or five people per evening, then top up with quarters if the evening runs long. The group quantities page works through larger numbers.

Remember that wine stores close on poya days, so a group should buy for those days in advance.

On a tour that changes hotel every night or two, small bottles are the best value. A quarter or half fits in a day bag, finishes quickly and does not leak spirit into luggage on a winding hill road.

An open full bottle is awkward on the road. It needs to stay upright, it is heavy, and some hotels ask guests not to bring outside alcohol into restaurants or pool areas. Most visitors on a round-island tour do better buying a quarter or half at each stop.

For a flight home, only sealed bottles in checked luggage are sensible, and the airline and home-country allowances apply whatever the size.

The wrong size costs more in three ways. A full bottle left behind at checkout wastes far more than the saving per millilitre. A quarter bought five times because the group keeps running out means five trips and five bags. And buying in a hotel bar because the shop bottle was finished is the most expensive outcome of all.

Lankan Stays & Trails includes a note on drinks shopping in its pre-departure guidance, including where licensed shops are on the route and which days they close.