How to make the perfect milk tea, according to science
Share
The art (and science) of a good milk tea
Making a simple milk tea seems easy, but have you ever noticed that it doesn't always taste the same? Sometimes it's bland, sometimes curdled, or the milk overwhelms the tea flavor. The good news is that science has the answer to making a perfect milk tea every time.
In this article, I'll explain how to achieve that creamy and balanced cup we all enjoy, applying the principles recommended by experts.
Why does the order of preparation matter?
One of the oldest debates is: milk first or tea first? According to studies by Dr. Andrew Stapley, a chemical engineer at Loughborough University, adding milk first is key to preventing lumps and achieving a smooth texture. Stapley discovered that pouring cold milk into a hot cup can cause milk proteins to coagulate quickly, creating an unpleasant texture. By doing it the other way around (milk first), the temperature change is more gradual, protecting its structure.
The ideal water temperature
Another crucial factor is the water temperature. Black tea, the most common in this preparation, needs water at 90-95 °C, not boiling. If the temperature is too high, it will release excessive tannins, leading to a bitter taste that even milk cannot soften.
Tip:
-
Boil the water and let it rest for 30 seconds before pouring it over the tea.
Exact proportions: tea, milk, and time
Science also suggests ideal proportions to balance flavors:
-
1 tea bag or 2g of black tea per cup (250ml)
-
30-50 ml of whole or semi-skimmed milk
-
Infusion time: 3-5 minutes
A short infusion results in a weak flavor, while over-infusion makes the tea bitter. The middle ground ensures body without losing elegance.
Plant-based milk: does it work the same?
If you prefer plant-based options, the process is similar but with nuances. Drinks like oat or barista almond milk have better heat stability and offer a creamy texture comparable to cow's milk.
Tip:
-
Look for plant-based milks enriched with calcium and without added sugars to avoid altering the flavor profile.
The final touch: stir, don't shake
Finally, to achieve that silky sensation, gently stir the milk tea with a spoon, without vigorously shaking. This avoids the appearance of bubbles and maintains elegance in the cup.
Conclusion: a small gesture, a big difference
Preparing a perfect milk tea is a matter of small details: the order of ingredients, temperature, proportions, and gentleness. With these science-based tips, your next cup will be worthy of an expert.
Would you like to discover the best teas to mix with milk? I'll leave you the Sabor de Té category made for that very purpose: