Wintermelon Milk Tea: Taste, Caffeine and Easy Recipe

Wintermelon milk tea is a sweet, creamy bubble tea flavored with winter melon syrup. It usually tastes of brown sugar, caramel and mild cooked gourd. The drink does not taste much like watermelon, honeydew or cantaloupe.

Its caffeine content depends on the base. Winter melon syrup, water and milk contain no natural caffeine. Assam black tea, green tea or oolong tea adds caffeine. Check the recipe or ask the shop because the name wintermelon milk tea does not tell you whether tea leaves are present.

Wintermelon milk tea at a glance

What is wintermelon milk tea?

Wintermelon milk tea is a cold milk drink flavored with a sweet winter melon concentrate. Shops may use bottled syrup, house-cooked syrup, a concentrated paste or a solid winter melon tea brick.

Some recipes contain brewed tea. Others use only winter melon syrup, milk, water and ice. This explains why 2 drinks with the same name can have different caffeine levels and flavors.

The drink may also be called winter melon boba, winter melon milk, donggua milk or donggua milk tea. Donggua cha means winter melon drink or winter melon tea. Here, tea can describe a plant-based beverage even when it contains no leaves from Camellia sinensis.

Taiwanese winter melon drink context

Donggua cha is an essential pillar of Taiwanese drink culture, traditionally brewed by simmering fresh wax gourd with brown sugar into a rich, aromatic concentrate. Modern bubble tea shops pair this fragrant syrup with whole milk, fresh oat drink, brewed tea and chewy toppings.

Plain donggua cha functions as a caffeine-free herbal refreshment. Adding creamy milk and brisk black or oolong tea elevates it into the velvety cafe drink beloved across global boba menus.

What is winter melon?

Winter melon is the fruit of Benincasa hispida, a member of the Cucurbitaceae (gourd) family. Other common names include wax gourd, ash gourd and white gourd.

Kew Science records the species as native from central and southern Malesia to the southwest Pacific. Mature fruits develop a distinct pale, powdery waxy bloom that seals moisture inside, enabling the gourd to store for months through winter seasons.

What does fresh winter melon taste like?

Fresh raw winter melon has a mild, watery, crisp profile similar to cucumber or zucchini. Because its natural flavour is subtle, it absorbs surrounding seasonings and sugars during simmering, becoming a rich, caramel-like nectar when cooked with brown sugar.

What does wintermelon milk tea taste like?

Wintermelon milk tea tastes sweet, creamy and deeply caramelized. Brown cane sugar delivers toasted molasses and butterscotch notes, while cooked winter melon pulp imparts a delicate herbal-vegetal undertone that rounds out the sweetness.

When combined with milk, it produces a silky, comforting mouthfeel. Adding black tea introduces malty briskness, jasmine tea brings floral aroma, and roasted oolong provides a toasted nutty finish.

Does wintermelon milk tea taste like watermelon?

No. Watermelon is Citrullus lanatus, a crisp, sweet, red-fleshed fruit. Winter melon is Benincasa hispida, a savoury white-fleshed wax gourd. Wintermelon milk tea derives its signature caramel sweetness from slow-simmered brown sugar reduction rather than fruity melon juice.

Wintermelon vs brown sugar milk tea taste

Does wintermelon milk tea have caffeine?

Pure winter melon, sugar, milk, and tapioca contain zero caffeine. A winter melon drink made strictly with milk and syrup is completely caffeine-free, making it an ideal choice for children and evening consumption.

However, when a cafe blends winter melon syrup with a true brewed tea base (such as Ceylon black tea or green tea), the beverage will contain caffeine. FDA figures list approximately 71 mg for a standard 12 oz black tea and 37 mg for green tea.

What is a wintermelon tea brick?

A winter melon tea brick (donggua zhuan) is a concentrated solid block made by boiling down fresh winter melon pulp and dark cane sugar until crystallized into a hard slab. Commercial bricks dissolve smoothly in hot water to yield authentic Taiwanese boba syrup.

How to dissolve a wintermelon tea brick

1. Weigh the required portion of the winter melon brick on a kitchen scale.
2. Heat water in a stainless-steel saucepan according to package instructions (typically 1 part brick to 1–2 parts water for concentrate).
3. Add the brick chunks and stir over low heat until completely dissolved with no solid pieces remaining.
4. Allow the amber syrup to cool to room temperature, then store in an airtight glass container in the refrigerator at 4°C.

Food chemistry behind the caramel taste

The complex butterscotch aroma of winter melon syrup arises during reduction through non-enzymatic browning:

• Caramelization: Thermal decomposition of sucrose and glucose at elevated temperatures yields buttery diacetyl, nutty pyrazines and caramel maltol notes.
• Maillard Reaction: Interactions between reducing sugars and naturally occurring trace amino acids produce savory, toasted complexities that temper excessive sweetness.

Easy wintermelon boba recipe

This boba-shop formula makes 2 iced 16 oz drinks with silky winter melon syrup and chewy toppings.

Ingredients

• 60 to 80 ml prepared winter melon syrup (dissolved brick or commercial syrup)
• 240 ml cold whole milk or unsweetened oat milk
• 160 ml chilled black tea, jasmine green tea or cold water (for caffeine-free)
• 80 to 100 g cooked honey tapioca pearls
• 80 g diced grass jelly
• 250 to 300 g ice cubes

Method

1. Prepare Syrup: Dissolve winter melon brick in hot water or measure ready-to-use syrup. Chill completely in the refrigerator.
2. Layer Glass: Divide cooked tapioca pearls and diced grass jelly between 2 tall 16 oz glasses. Drizzle 30–40 ml winter melon syrup over the toppings.
3. Add Ice & Tea: Fill glasses with ice cubes. Pour 80 ml chilled tea (or cold water) into each glass.
4. Pour Milk & Serve: Top with 120 ml cold milk or oat drink. Stir gently to create an amber-cream swirl and enjoy with a wide straw.

Best toppings for wintermelon boba

• Grass Jelly (Platostoma palustre): The premier pairing. Its cool herbal bitterness balances the rich caramel sweetness of winter melon syrup perfectly.
• Egg Pudding: Adds a silky, custard texture that melts into the caramel-infused milk.
• Tapioca Pearls: Delivers classic bouncy chewiness that absorbs the brown sugar notes.
• Aloe Vera Jelly: Provides a crisp, juicy bite that lightens the drink's mouthfeel.
• Nata de Coco: Chewy coconut gel cubes that pair wonderfully with tea-led winter melon variations.

Frequently asked questions

Sources and review notes

Botanical classifications and food science references were verified against authoritative botanical and governmental sources:

• Kew Science: Benincasa hispida (Wax Gourd)
• USDA: Winter melon and Asian vegetables guide
• FDA: Typical caffeine content and variation
• Kew Science: Platostoma palustre (Grass Jelly plant)
• Research on wax crystals on winter melon fruit (PubMed)
• Research on aroma-active compounds in brown sugar (PubMed)