Knowledge Base
Coffee & Tea Guides
Brew better and explore more — buying guides, how-tos, and explainers for every coffee and tea ritual.

Explainer
Does Thai Milk Tea Have Caffeine?
Yes — Thai milk tea usually has caffeine because it is built on strong brewed black tea, landing roughly 20 to 60 mg per serving. Here is why, how much, and what changes it.

Explainer
Is Boba Dairy-Free? Pearls, Milk Tea, and How to Order
Is boba dairy-free? The chewy pearls are, but a classic milk tea usually is not. Here is where dairy hides in bubble tea and how to order a dairy-free cup.

Explainer
Popping Boba vs Crystal Boba: What's the Difference?
Popping boba burst with fruit juice while crystal boba stay chewy and jelly-like. Here is how the two bubble tea toppings compare in texture, flavor and feel.

Explainer
What Is Honeydew Milk Tea?
Honeydew milk tea is a sweet, pale-green bubble tea flavored with honeydew melon over chewy pearls. Here is what it tastes like, what goes in it and how it compares to taro and other fruity milk teas.

Explainer
Chemex vs Kalita Wave: Which Pour-Over Should You Choose?
Chemex vs Kalita Wave, compared: the clean, bright Chemex carafe versus the even, forgiving flat-bottom Kalita Wave, and how to pick the right pour-over for your taste.

Explainer
Piccolo vs Macchiato: What's the Difference?
A piccolo (piccolo latte) is a mini milk latte on an espresso shot; an espresso macchiato is a shot stained with just a dollop of foam. Here is how the two small drinks differ in milk, strength, size and caffeine — and which one to order.

Explainer
Ristretto vs Doppio: What's the Difference?
A ristretto is a "restricted" single espresso pulled with less water for a small, sweet, concentrated shot; a doppio is simply a double espresso — two shots in one cup. Here is how they compare on volume, strength, flavour and caffeine, and which to choose.

Explainer
Iced Cappuccino vs Iced Latte: What's the Difference?
Iced cappuccino vs iced latte comes down to one thing: the milk-to-foam ratio. An iced latte is mostly cold milk and smooth, while an iced cappuccino uses less milk and more froth for a lighter, stronger-tasting cup. Here is how they compare on ratio, taste, texture and caffeine.

Explainer
What Is a Mazagran? The Original Iced Coffee
A mazagran is a cold, sweetened coffee served over ice, often with a squeeze of lemon, and it is frequently called one of the original iced coffees. Here is where it comes from, how it tastes, and how the Portuguese lemon version differs from an iced latte or cold brew.

Explainer
How Much Caffeine Is in a Red Eye?
A red eye stacks a full cup of brewed drip coffee with a shot of espresso, so it usually lands around 150 to 200 mg of caffeine. Here is why it runs high, how it compares to the black eye and double espresso, and what changes the total.

Explainer
How Much Caffeine Is in a Doppio?
A doppio is a double espresso, so it usually carries about 120 to 160 mg of caffeine — roughly twice a single shot. Here is what that range means, what pushes it up or down, and how it stacks up against brewed coffee and your daily limit.

Explainer
How Much Passionflower Tea Should You Drink Per Day?
Most people sip one to three cups of passionflower tea per day, often a single cup in the evening. Here is how to judge the amount that suits you.

Explainer
Does Mullein Tea Have Caffeine?
No — plain mullein tea is naturally caffeine-free, because it is a herbal tisane rather than true tea from Camellia sinensis. Here is why, and the one blend caveat worth checking.

Explainer
Matcha vs Espresso: How Do They Compare?
Matcha vs espresso compared on caffeine, how the energy feels, flavour and ritual, with a simple side-by-side table and tips on which one to pick.

Explainer
Matcha vs Chai: Which Should You Drink?
Matcha vs chai compared: matcha is bright, whisked green tea while chai is spiced black tea simmered with milk. Here is how they differ on flavour, caffeine, feel and as a latte, so you can pick the cup that suits your mood.

Explainer
Usucha vs Koicha: Thin and Thick Matcha Explained
Usucha (thin tea) and koicha (thick tea) are the two traditional ways to prepare matcha. Here is how their ratio, method, taste and grade differ — and when to reach for each.

Explainer
Culinary vs Ceremonial Matcha: What's the Difference?
Ceremonial-grade matcha is the delicate whisk-and-sip grade; culinary-grade is the sturdier, everyday grade for lattes and baking. Here is how the two differ and how to choose.

Explainer
How Much Caffeine Is in a Matcha Latte?
A typical one-scoop matcha latte carries roughly 40 to 80 mg of caffeine, all from the whisked green-tea powder and none from the milk. Here is how it compares to coffee and what raises or lowers the number.

Explainer
What Is Dirty Boba?
Dirty boba is a bubble-tea drink of brown sugar or caramel syrup streaked through fresh milk over chewy pearls, usually with little or no tea. Here is what makes it different from brown sugar milk tea, how it tastes, and where the name comes from.

Explainer
Does Taro Milk Tea Have Caffeine?
Taro root has no caffeine, so whether your taro milk tea is caffeinated depends on its tea base: roughly 20-60 mg on black or green tea, and near zero without tea.

Explainer
Crystal Boba vs Tapioca Pearls: What's the Difference?
Crystal boba is a clear, springy agar or konjac jelly, while classic tapioca pearls are dark, soft and chewy. Here is how the two toppings differ in look, texture, ingredients and taste, plus which to pick.

Explainer
Popping Boba vs Tapioca Pearls: What's the Difference?
Popping boba burst with fruit juice; tapioca pearls are chewy and starchy. Here is how the two boba toppings compare on texture, flavor, taste and pairing.

Explainer
Is Boba Gluten-Free? What's Really in Your Bubble Tea
The classic tapioca pearls in boba are naturally gluten-free, but a full bubble tea is not guaranteed safe. Here is where gluten can sneak in and how to order more carefully.

Explainer
How Much Lavender Tea Should You Drink Per Day?
Most people who enjoy lavender tea drink about one to three cups a day, often one calming cup in the evening. Here is what shapes the right daily amount for you.