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

Explainer
How Much Valerian Tea Should You Drink Per Day?
Most people keep valerian tea to about 1 to 3 cups a day, often a single cup in the evening. Here is why the right amount is so personal, and who should check with a healthcare provider first.

Explainer
Does Hops Tea Have Caffeine?
Pure hops tea is naturally caffeine-free — it is a herbal infusion made from the flowers of the hop plant, not the tea plant. Here is why it has no caffeine, the one blend exception to watch, how it tastes, and who it suits.

Explainer
Does Catnip Tea Have Caffeine? A Clear Answer
Pure catnip tea is naturally caffeine-free — it's a herbal tisane from the catnip plant (a mint-family herb), not the tea plant. Here's why, the blend to watch, how it tastes, and the cat question.

Explainer
Does Lemon Verbena Tea Have Caffeine?
No — pure lemon verbena tea is naturally caffeine-free, because it is a herbal tisane from the leaves of Aloysia citriodora, not the tea plant. Here is why it has none, the one blend exception to check for, and why it suits an evening cup.

Explainer
Fruit Tea vs Milk Tea: What's the Difference?
Fruit tea mixes brewed tea with real fruit and skips the dairy, while milk tea adds milk or creamer for a creamier, sweeter cup. Here is how the two compare on taste, texture, toppings and caffeine, and when to pick each.

Explainer
What Is Oolong Milk Tea? A Fragrant Milk Tea Explained
Oolong milk tea is a milk tea made with brewed oolong instead of black or green, giving a smooth, fragrant cup, often served as bubble tea with tapioca pearls.

Explainer
Is Bubble Tea Healthy? Sugar, Calories, and How to Order Lighter
Bubble tea is best enjoyed as a treat, not a health drink. Here is where the sugar and calories come from, the small upside from the tea, and simple ways to order a lighter cup.

Explainer
Is Bubble Tea Vegan? What to Check and How to Order
Is bubble tea vegan? Usually the pearls are, but the milky base often is not. Here is what to watch for, plus how to order a vegan cup with confidence.

Explainer
Does Bubble Tea Have Caffeine? Boba Caffeine Explained
Most bubble tea is caffeinated — usually about 25 to 75 mg per serving from its brewed tea base. Here is where that caffeine comes from, which versions are low or caffeine-free, and how boba compares to a cup of tea or coffee.

Explainer
Moka Pot vs Percolator: What's the Difference?
A moka pot pushes water up through the grounds once for a strong, concentrated cup; a percolator recirculates boiling water again and again for a big, bold batch. Here is how the two stovetop brewers really differ in taste, strength, control and grind.

Explainer
Turkish Coffee vs Espresso: What's the Difference?
Turkish coffee vs espresso, compared: both are small and intense, but one is simmered fine in a cezve with the grounds left in, and the other is pressure-brewed into a crema-topped shot.

Explainer
Iced Espresso vs Cold Brew: What's the Difference?
Iced espresso and cold brew are both cold coffee, but they are brewed in opposite ways. Here is how they compare on taste, strength, caffeine and brew time.

Explainer
What Is a Freddo Espresso? Greece's Frothy Iced Coffee
A freddo espresso is Greece's frothy iced espresso: a whipped double shot poured over ice, no milk. Here is what it is, why it foams, and how it compares.

Explainer
What Is a Shakerato? Italy's Shaken Iced Espresso
A shakerato (caffe shakerato) is Italian iced coffee: a hot espresso shot shaken hard with ice and optional sugar, then strained frothy into a chilled glass. No milk, no water. Here is what it is, why the shaking matters, how it tastes, and how to make one.

Explainer
How Much Caffeine Is in Iced Coffee?
Classic iced coffee carries roughly 90 to 165 mg of caffeine, about the same as a same-size hot cup, because it is simply brewed coffee poured over ice. Here is why the ice does not change the number, and how iced coffee compares with cold brew and an iced latte.

Explainer
How Much Caffeine Is in a Nitro Cold Brew?
A large nitro cold brew often carries about 200-330 mg of caffeine, usually more than a same-size hot cup. Here is why it runs high, how it compares, and what changes the number.

Explainer
How Much Caffeine Is in a Frappe?
A classic Greek frappe is whipped from instant coffee, so it usually carries about 60 to 100 mg of caffeine per glass — set by the spoons of instant, not the ice, milk or sugar. Here is a hedged look at the numbers, why a double runs higher, and how it differs from a Frappuccino.

Explainer
How Much Caffeine Is in a Frappuccino?
The caffeine in a Frappuccino depends almost entirely on flavor: a coffee base brings roughly 65-100 mg, while a creme version is close to caffeine-free. Here is how size, shots and chocolate change the number.

Explainer
How Much Caffeine Is in Turkish Coffee?
A small demitasse of Turkish coffee usually holds about 50-65 mg of caffeine - concentrated per ounce but modest per cup. Here is how it stacks up and what changes the number.

Explainer
English Breakfast vs Assam: What's the Difference?
English breakfast is a blended black tea built for strength and milk; Assam is the single-origin malty black at its heart. Here's how the two robust blacks compare on taste, body, brewing and caffeine.

Explainer
How Much Milk Thistle Tea Should You Drink Per Day?
Milk thistle tea is caffeine-free, so caffeine sets no ceiling on it. Here is a hedged, non-medical look at how much milk thistle tea per day makes sense, how it is brewed, why it is a mild infusion, and when to check with your own healthcare provider.

Explainer
How Much Lemon Balm Tea Should You Drink per Day?
For most healthy adults, about one to three cups of lemon balm tea a day is a comfortable amount. It is caffeine-free, so here is what really sets your daily limit — and who should check with a doctor first.

Explainer
How Much Sage Tea Should You Drink Per Day?
Sage tea is caffeine-free, so caffeine will not cap how much you drink — but it is a keep-it-modest herb. Here is why most people settle on about one to two cups a day, and how to brew it well.

Explainer
How Much Nettle Tea Should You Drink Per Day?
Nettle tea is naturally caffeine-free, so there is no caffeine cap on it. Most people comfortably drink about one to three cups a day - here is what actually limits it, how to brew it, and when to check with a professional first.