Tra sua, and why every corner sells bubble tea
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Tra sua is the drink Vietnam's teenagers made theirs. It is why every second shopfront on a provincial main street now has a sealed plastic cup and a fat straw on its sign.
Where did it come from?
Taiwan, by way of the 2000s, and then a boom that changed the streets. The first wave arrived as small counters in Saigon and Hanoi. The second, from about 2013, brought the international chains and the sealed-lid machines that made the format recognisable.
What made it stick is not the tea. A cup of tra sua buys a table for two hours in an air-conditioned room. That is what a fifteen-year-old with homework and no money of their own actually needs.
What is in the cup?
Black or green tea, milk in some form, sugar syrup, ice and a topping. The tea is brewed strong and held. Milk is powder at cheaper counters and fresh at the chains, and the topping is chosen separately.
| Topping | Vietnamese | What it is |
|---|---|---|
| Tapioca pearls | Tran chau | The default, chewy, black or white |
| Grass jelly | Thach suong sao | Dark, faintly bitter, cheap |
| Aloe | Thach nha dam | Clear cubes, mild |
| Pudding | Pudding | Set egg custard |
| Cheese cap | Kem cheese | Salted cream poured over the top |
How do you order the sugar and ice?
Name the drink, then the sugar and the ice as percentages. Counters expect this and will ask if you do not offer it: 100, 70, 50, 30 or 0 per cent of each.
Fifty per cent sugar is where most of the tea becomes tasteable. Thirty per cent ice keeps the cup from turning to water in the heat, which matters more here than the sugar does. Add the topping last and expect the whole thing to take three minutes.
How much sugar is in a cup?
A standard cup at 100 per cent sugar carries roughly the sweetness of a can and a half of soft drink, and the toppings add more: tapioca pearls are cooked in syrup and a cheese cap is cream and condensed milk. A 500 ml cup with pearls at full sugar is a meal's worth of calories.
The calorie load is why the percentage scale exists and why locals use it. Fifty per cent is the normal order among adults, 30 per cent is where the tea starts to show, and 0 per cent is available and tastes like tea with milk in it.
Which milk tea chain is which?
Phuc Long is the Vietnamese one, started in the highlands as a tea company, and its tea is stronger and less sweet than the rest. Ding Tea, Gong Cha, Koi Thé and Toco Toco are the Taiwanese names with outlets in every district.
Beyond the chains sit thousands of independents. The coffee shop guide applies exactly: the queue at four in the afternoon tells you more than the branding does.
Is it displacing coffee?
Not displacing, splitting. Coffee in Vietnam is a morning drink taken by adults on a low stool. Ca phe sua da has not lost a single customer to milk tea.
Tra sua owns the afternoon and the under-twenty-fives. The two trades barely overlap, which is why a street can carry six coffee places and four tea counters and all ten survive.
What does it cost and is it worth it?
Thirty to sixty thousand dong at a chain. That is two to four times the price of a street coffee and roughly what a bowl of noodles costs. Independent counters run cheaper, from about 20,000 dong.
Worth it as a way to sit down in the heat with wifi and a plug, which is what you are actually buying. As a drink, order it at 50 per cent sugar or the sweetness will be the only thing you taste.
Is tra sua worth seeking out?
Nowhere special, and that is the point of reading about it. Tra sua is not a thing to seek out. It is the thing you pass forty times a day and eventually wonder about, and the shop signs guide covers reading the boards outside.
The Vietnamese tea tradition is a different subject entirely. The tea guide covers the green tea the country actually drinks at home.
FAQ
What is tra sua?
Tra sua is milk tea, the Vietnamese name for what English calls bubble tea. It arrived from Taiwan, took hold in the 2010s, and is now sold from chains and shophouse counters in every town of any size.
What are the toppings called?
Tran chau is tapioca pearl, the default. Thach is jelly, in grass, coconut, aloe or fruit versions. Kem cheese is the salted cream cap poured on top, and pudding is a set custard. Most shops charge 5,000 to 10,000 dong for each.
How do you order sugar and ice levels?
By percentage, and the counter expects it. Ask for 50 or 30 per cent sugar unless you want it very sweet, and 30 per cent ice if you want to taste the tea rather than the melt. The default is 100 per cent of both.
What does a cup cost?
Around 30,000 to 60,000 dong at a chain, and less at a neighbourhood counter. At 26,000 dong to the dollar that is a little over one to two and a half dollars, which is two to four times what a street coffee costs.
Which chains are worth trying?
Phuc Long is the Vietnamese one and the strongest tea of the big names. Ding Tea, Gong Cha, Koi and Toco Toco are the Taiwanese chains with outlets everywhere. Beyond them every town has independents, and the queue outside one is the reliable signal.
Is tra sua the same as Vietnamese milk coffee?
No. Ca phe sua da is coffee with condensed milk over ice and has been the national drink for a century. Tra sua is tea with milk powder or fresh milk plus toppings, it is sweeter, and its audience is a generation younger.