On Le Van Luong Street in Ho Chi Minh City's Nha Be area, a curbside styrofoam chest has become an unlikely landmark. Outside a small gold shop, hundreds of motorbike drivers, delivery couriers and street vendors stop every day to fill their bottles with free cold brewed tea and crushed ice. The shop has kept this going for roughly two decades, and it now spends well over a million dong a day doing it.

The operation is more organised than many paid drink stalls. There are fresh plastic cups, straws, carry bags and tight-fitting lids laid out each morning, so riders without a thermos can grab a serving and top up a second cup for the road. The shop's security guard, Tran Ut Cung, starts at around 5:15 a.m. — not checking locks or cameras, but boiling water, brewing big batches of tea and splitting ice. He has worked there 17 years and says he spends more time tending the tea vat than watching the motorbikes.

Demand spikes with the southern heat. On one scorching September day, the shop got through 110 sacks of crushed ice in 24 hours — a record in its history. At 15,000 VND per sack, that alone cost about 1.65 million VND (roughly $65), before counting tea leaves, electricity and disposable cups. On peak heat days, ice delivery trucks make three separate drops.

The regulars are people who work in the sun all day: a 54-year-old company driver from Phu My Hung who has been pulling up for three years, ride-hail drivers covering Nha Be and the former District 7, and street vendors carrying goods on shoulder poles. Several mention the same thing — that a free cold drink in brutal heat saves gig workers real money every month. One admitted feeling awkward at first about stopping at a gold shop for water, until the guard greeted him with a smile and a fresh sleeve of cups.

The person behind it is shop owner Nguyen Ngoc Chau, 57, from Vinh Long Province. She started the chest 20 years ago with a single styrofoam box and no interest in self-promotion — there are no signs, and she has never worried about crowds gathering at the door of a business that usually keeps loiterers away. Her philosophy is blunt: "If you have the means to do it, you simply do it." She also cooks around 10 kilograms of rice a day for stray dogs and cats around the former District 7.

For travellers, this is a small story that says a lot about the city. Vietnam's street-drink culture is famously generous, and Saigon's sidewalk tea stands are part of daily life — but a shop quietly funding cold drinks for delivery riders for 20 years is generosity at another level. If you're renting a motorbike or riding grab bikes around the southern districts, don't be surprised if a local points you toward a free refill. And when you're sweating through a midday walk, remember that the city's small kindnesses are often literally sitting on the curb.