Knowledge Base
Coffee & Tea Guides
Brew better and explore more — buying guides, how-tos, and explainers for every coffee and tea ritual.
Explainer
What Is Bengal Spice Tea? The Caffeine-Free Chai-Style Herbal Blend
Bengal Spice is Celestial Seasonings' caffeine-free herbal blend inspired by masala chai — cinnamon, cardamom, ginger and cloves with roasted chicory and carob, but no black tea, so it's a spiced tisane you can enjoy any time of day.
Explainer
What Is Batch Espresso?
Batch espresso means pulling or pooling espresso shots ahead of demand for speed, rather than making each one to order. Here is what the term covers, why some cafes do it, the freshness trade-offs, and cleaner ways to keep a line moving.
Explainer
What Is Bancha Green Tea?
Bancha is the everyday Japanese green tea made from mature, later-harvest leaves -- milder and lower in caffeine than sencha. Here is what it is, how it tastes, how to brew it, and how it relates to hojicha, genmaicha and kukicha.
Explainer
What Is Bai Mu Dan (White Peony) Tea?
Bai Mu Dan (White Peony) is a Chinese white tea of a downy bud plus its first one or two leaves — soft, floral and lightly sweet. Here is how it is made, how it tastes, how to brew it, and how it compares to Silver Needle and Shou Mei.
Explainer
What Is an Espresso Shot? Single, Double, and How It's Pulled
An espresso shot is a 25-30 ml concentrated coffee forced through fine grounds at about 9 bar in 25-30 seconds. Here's how single and double shots differ, what good crema and balance look like, and why the shot anchors every cafe menu.
Explainer
What Is a Tisane? Herbal Tea Explained
A tisane is a herbal infusion, herbs, flowers, fruit, roots, bark or spices steeped in hot water, with no true tea leaf and almost always no caffeine. Here is what the word really means, the main types, and how to brew one well.
Explainer
What Is a Tea Room? The Tea Cafe, Explained
A tea room is a tea-focused cafe that serves loose-leaf and pot-brewed teas with scones, sandwiches and cakes — the traditional home of afternoon tea. Here is what defines a tea room, its history across cultures, and what to expect on the menu.
Explainer
What Is a Specialty Coffee Shop?
A specialty coffee shop is a cafe built on high-quality, freshly roasted, carefully sourced beans, skilled baristas and precise brewing that lets the coffee take center stage.
Explainer
What Is a Portafilter? Parts, Sizes and How It Works
A portafilter is the handled device that holds a basket of ground coffee and locks into an espresso machine's group head. Here is what every part does, the spout and basket types, common sizes, and how to dose, tamp, lock and clean one.
Explainer
What Is a Piccolo Latte?
A piccolo latte is a small, coffee-forward milk coffee: a ristretto or espresso shot with a little steamed milk and thin microfoam in a ~90-120 ml glass. Here is how it is built, why it is bolder than a latte, and how it differs from a cortado, macchiato and flat white.
Explainer
What Is a Neighbourhood Cafe? The Local Coffee Shop as a Third Place
A neighbourhood cafe is a small, local coffee shop rooted in its community -- where regulars are known by name and the room doubles as a relaxed third place between home and work. Here is what defines one, how it differs from a chain, and how to spot a good one.
Explainer
What Is a Lever Espresso Machine?
A lever espresso machine lets you pull a lever, instead of an electric pump, to create the pressure that makes espresso. Here is how spring-piston and manual levers work, what sets them apart from pump machines, and who they are for.
Explainer
What Is a Gaiwan? The Chinese Lidded Tea Bowl
A gaiwan is the traditional Chinese lidded tea bowl of lid, bowl and saucer. Here is what it is, how to brew with one, which teas suit it best, and how it compares with a teapot.
Explainer
What Is a Frappuccino? The Starbucks Blended Iced Drink Explained
A Frappuccino is Starbucks' trademarked line of blended iced drinks — coffee or crème based, thick and milkshake-like. Here's what it really is, where the name came from, and how the flavours split.
Explainer
What Is a Dallah? The Arabic Coffee Pot, Explained
A dallah is the traditional Arabic coffee pot with a long curved spout and pointed lid, used to brew and serve cardamom-scented qahwa. Here is what it is, what it brews, and the hospitality ritual behind every cup.
Explainer
What Is a Cuppa? British Tea Slang, Explained
A cuppa is British and Commonwealth slang for a cup of tea, short for "cup of." Here's what it means, what builder's tea is, how a classic cuppa is made, and the everyday ritual behind it.
Explainer
What Is a Coffee House? History, Meaning and Culture
A coffee house is a cafe that has, for centuries, doubled as a social gathering place. Here is what a coffee house is today, its history from Istanbul to Vienna, and how it differs from a cafe, coffee bar or coffee shop.
Explainer
What Is a Breve Coffee? Cafe Breve Explained
A breve, or cafe breve, is an espresso drink made with steamed half-and-half instead of milk — richer, creamier and more decadent than a latte. Here's what it tastes like, how it's built, and how it compares to a latte, cappuccino and flat white.
Explainer
What Is a 24-Hour Coffee Shop?
A 24-hour coffee shop is a cafe that stays open around the clock. Here is what makes one different, where they thrive, who relies on them, and how to find one that is genuinely open all night.
Explainer
What Does a Barista Do? The Job, Explained
A barista does far more than press buttons: pulling and tasting espresso, steaming milk, dialing in the grinder, running the bar and serving fast. Here's the full job — core duties, the skills it takes, a typical shift, and how the role ladders up.
Explainer
What Are Tea Leaves? The One Plant Behind Every True Tea
Tea leaves are the leaves and buds of Camellia sinensis, and every true tea — white, green, oolong, black, yellow and pu-erh — comes from this one plant. Here is how a single leaf becomes so many teas, and why herbal blends are not tea leaves at all.
Explainer
What Are Espresso Grounds?
Espresso grounds are coffee beans ground fine for espresso — no special bean required. Here is what the espresso grind is, why it matters most, how it compares with drip, French press and Turkish grinds, and what to do with the spent puck.
Explainer
What Are Catechins in Tea?
Catechins are the antioxidant polyphenols that make tea, and green tea in particular, so interesting. Here is what they are, the role of EGCG, why green tea keeps more of them than black, and what the research does and does not show.
Explainer
What Is a WDT Tool? Espresso Distribution, Explained
A WDT tool rakes fine needles through your espresso grounds before tamping to break up clumps and even the bed. Here is how the Weiss Distribution Technique works, how to use it, and when it matters most.