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

Explainer
Hard Iced Tea, Explained
Hard iced tea is iced tea with alcohol: a ready-to-drink, roughly 5% ABV canned drink for adults. Here is what it is, how it is made, its flavors, and how to make a spiked iced tea at home.

Explainer
Green Coffee Beans, Explained
Green coffee beans are raw, unroasted coffee beans — the same seeds that become your brew, minus the heat. Here is how they differ from roasted, why home roasters buy them, how to store them, and the honest truth about green coffee extract.

Explainer
Ginseng Coffee, Explained
Ginseng coffee blends coffee with ginseng root extract, most famously Italy's sweet, creamy caffe al ginseng. Here is what it is, how it tastes, whether it is good for you, and how to make a ginseng latte at home.

Explainer
George Clooney and the Nespresso Campaign, Explained
George Clooney has fronted Nespresso's "What Else?" ads since 2006. Here's how the campaign worked, who the co-stars were, and why it became a coffee-marketing benchmark.

Explainer
Fuze Iced Tea, Explained
What Fuze iced tea actually is: the ready-to-drink Coca-Cola tea brand, its history, black and green tea bases, flavors, caffeine, the "fuse tea" spelling, and whether it's healthy.

Explainer
Full-Leaf Tea, Explained: Whole-Leaf vs Broken
Full leaf teas are made from large, intact, unbroken leaves rather than the fannings and dust in cheap tea bags. Here is what leaf grade really means, why whole leaves brew gentler and re-steep, and how to brew them with room to unfurl.

Explainer
Fruit Tea, Explained: Types, Flavors and How to Brew
Fruit tea usually means a caffeine-free fruity infusion of hibiscus, rosehip, apple and berries. Here is what the term covers, the flavors, and how to brew it hot or iced.

Explainer
Fresh Ground vs Pre-Ground Coffee: Does It Matter?
Grinding beans fresh keeps far more aroma than pre-ground coffee, but pre-ground wins on convenience. Here is the honest trade-off, a side-by-side comparison, and how to brew a better cup either way.

Explainer
French Vanilla Coffee Creamer, Explained
French vanilla creamer is a sweet, custardy vanilla coffee creamer you add to coffee. Here's what French vanilla really means, the dairy and non-dairy types, what's in commercial bottles, and an easy homemade recipe.

Explainer
Fortnum & Mason Tea, Explained
Fortnum & Mason is the historic London tea merchant founded in 1707, famous for premium loose-leaf teas and the honey-smooth Royal Blend. Here is what the brand is, its signature blends, the eau-de-nil tins and how to brew a fine black blend at home.

Explainer
Folgers Coffee, Explained
Folgers is America's iconic red-canister supermarket coffee. Here's the brand's Gold Rush history, its Classic Roast and instant range, where it sits versus specialty coffee, and how to brew it well.

Explainer
Flat Tummy and Detox Teas, Explained (and the Catch)
Flat tummy and detox teas promise a slimmer stomach in a week or two. The honest reality: most of the short-term effect is water loss plus a hidden stimulant laxative, not fat loss. Here is what these teas really do, what is usually inside them, and the safety catches worth knowing.

Explainer
Dunkin Original Blend Coffee, Explained
Dunkin Original Blend is the chain's flagship 100% Arabica medium roast. Here is what it tastes like, the ground, whole-bean and K-Cup formats, and how to brew it well at home.

Explainer
Dunkin Franchise History, Explained
How one donut counter in Quincy, Massachusetts became a global chain: the Dunkin franchise story, from William Rosenberg's Open Kettle to Inspire Brands ownership.

Explainer
Dunkin Donut Flavors, Explained
A clear, global guide to Dunkin donut flavors, by family, from glazed rings and frosted cake donuts to the custard-filled Boston Kreme and bite-size Munchkins, plus how to pair each one with your coffee.

Explainer
Dunkin Coffee Flavors, Explained
Dunkin flavors come in two forms: unsweetened flavor shots and sweetened, creamy flavor swirls. Here is how each one works, the popular flavors, the seasonal limited-edition options, and how to build your own customized coffee.

Explainer
Dunkin and Baskin-Robbins: Why They Share Stores
Dunkin and Baskin-Robbins are two separate American chains under one owner. Here is why they share combo stores, who owns them now, and what each brand does best.

Explainer
Dragon Tea (Dragon Well / Longjing), Explained
"Dragon tea" almost always means Dragon Well (Longjing), China's famous pan-fired green tea. Here is what it is, how it tastes, and how to brew it.

Explainer
Dolce Gusto Pods and Capsules, Explained
What Dolce Gusto pods are, why some drinks need two capsules, how intensity ratings work, what fits which machine, and how to choose and recycle them.

Explainer
Does Chocolate Have Caffeine? How Much Is in Each Type
Yes, chocolate contains caffeine, but only a little, and theobromine is its main stimulant. Here is how much caffeine is in dark, milk and white chocolate, plus cocoa, hot chocolate and caffeinated bars.

Explainer
Dilmah Tea, Explained
Dilmah is a family-owned Sri Lankan brand built on single-origin Ceylon tea grown, picked, blended and packed at origin. Here is who founded it, what it makes, how it tastes, and how to brew it well.

Explainer
Demitasse Cups, Explained: The Small Cup Behind Every Espresso
A demitasse is the small 2-3 oz cup made for espresso and other short, strong coffees. Here is what it is, how it is sized, what it is made of, and how to choose one.

Explainer
Decaf Tea, Explained
Decaf tea is real tea with most of its caffeine removed, not all of it. Here is what decaffeinated tea is, how it is made, how much caffeine remains, and how decaf differs from naturally caffeine-free herbal tea.

Explainer
Decaf Espresso, Explained
Decaf espresso is a real espresso shot made from decaffeinated beans, with only a trace of caffeine. Here is how it tastes, how to dial it in, and why people order a decaf shot.