The Wine Journal

Wine Basics Explained: A Merchant Answers the Questions Everyone’s Afraid to Ask

Shop owner pouring a glass behind the counter while explaining wine basics to a customer holding a bottle

Wine basics explained the way I’d actually say them across the counter on a wet Tuesday, not the way a textbook would. Wine is fermented grape juice — yeast eats the sugar, alcohol and carbon dioxide come out the other end, and everything else is detail. That detail — grape, place, method — is what turns “fermented grape juice” into a Chablis, a Barolo, or a bottle of English fizz from a chalky slope in Kent. By the end of this you’ll know how to pick a bottle for the right reason, how to serve it so it actually shows well, and roughly what you’re paying for when the price climbs. Nothing more mysterious than that.

What actually makes one bottle different from another?

Colour is the first split — red, white, rosé, and these days orange too — and it tells you a fair bit about what’s coming. Reds are generally more tannic and drier; whites lean more acidic and floral, with a much wider range of sweetness; rosé sits in between, lighter than red but with a bit more grip than most whites.

After colour comes fizz. Still, sparkling, or somewhere in the murky middle (there are proper terms for “a bit fizzy” — perlant, frizzante — if you ever need one). Then alcohol level: ordinary wine sits roughly between 9 and 15%, fermentation doing all the work; fortified wines like Port, sherry and Madeira run higher, into the high teens and low twenties, because spirit’s been added to the mix.

Here’s the bit worth knowing: there isn’t one official system that ties all this together. Trade bodies classify by colour, by fizz, by alcohol, by grape, by place — and honestly, none of them is wrong, they’re just answering different questions. When someone tells you “there’s no proper way to sort wine,” they’re not being evasive. They’re being accurate. I spent my first couple of years in this trade assuming I’d missed some master chart everyone else had memorised. There isn’t one. You just learn which question you’re actually asking — and once you do, buying gets a great deal easier.

Why do you call some wines by region and other wines by grape?

Old World countries — France, Italy, Spain — mostly name wine after the place it comes from, because their rules link flavour directly to that patch of land: Chablis, Barolo, Rioja. New World countries — Australia, the US, Chile — usually put the grape front and centre instead, because a Cabernet Sauvignon from the Barossa is still, straightforwardly, Cabernet Sauvignon.

It’s not a strict border, though. Plenty of European regions blend both ideas — a Sancerre is Sauvignon Blanc, everyone in the trade knows it, the label just doesn’t say so because the place is doing the talking. And plenty of New World producers are shifting toward naming a specific vineyard or valley once they think that place has earned it, the same instinct that built Burgundy’s whole hierarchy of villages and crus over centuries.

Grape variety is genuinely useful shorthand, mind — it’s often the single easiest thing to spot in a blind glass, more obvious than soil or climate or how the wine was handled in the cellar. A Gewürztraminer smells like a Gewürztraminer whether it’s grown in Alsace or Alto Adige. Place adds nuance on top of that; it doesn’t replace it. If you want the fuller run-down of what else earns space on a label — vintage, ABV, appellation terms, all of it — I’ve written the whole thing out in reading a wine label: the five things that matter. And if you want a case study in how strongly a single place can shape flavour, what Etna Rosso tastes like is a good one — volcanic soil doing something no grape variety could do alone.

White Wine terroir artwork in real earth pigments — wine basics explained

How do I actually choose a bottle without feeling lost?

Call it the three-question rule: what style do you fancy, what do you want to spend, and what’s it actually for — a Tuesday supper, a gift, a wedding toast. Answer those three and you’ve cut the shop down from every shelf to about four of them. It sounds obvious. It works. And if you want the shortcuts filled in: a southern Rhône or Languedoc red rarely lets a Tuesday supper down, a Rioja with a bit of age makes a safe and generous gift, and a chalky English fizz has become a genuinely proud way to fill a toast.

Where you shop shapes the answer too, and it’s worth knowing the landscape. A big high-street chain buys at volume and passes some of that on in price, particularly if you’re buying by the case. The Wine Society works on membership, and its list leans toward hand-picked, less mainstream bottles you won’t find lined up in a supermarket aisle. An independent merchant like this one can’t out-buy either of them on price — we simply don’t move the volume — so what we’re selling instead is someone who’s actually tasted the wine and put it on the shelf on purpose, not because a rep hit a quota that month.

If you do walk into a shop and feel a flicker of nerves, that’s completely normal and every merchant I know has seen it a thousand times. Say hello, tell them your budget honestly, and ask for help — it’s the easiest question we get, and the one we actually enjoy answering. Nobody behind a counter is silently judging your choice of Tuesday red. We’re too busy hoping you come back.

Why do people slurp wine?

Slurping draws air through the wine across your tongue, which does on purpose — and rather more aggressively — what swirling does in the glass: pushes oxygen through it to release more aroma and flavour. It’s the same mechanism, just turned up. You don’t have to do it in company (it does look faintly ridiculous at a dinner party) but a good swirl before you sniff achieves almost the same thing with none of the noise.

Worth knowing why this matters beyond the theatre of it: wine sitting still in a glass is only showing you a fraction of what it’s got. By the time grapes have become wine they hold a small library of aroma compounds — research counts run into the hundreds — and plenty of the aromatic ones need agitation and air to lift off the surface and reach your nose. That’s also part of why a wine can taste different an hour after opening than it did straight from the cork — it’s simply had longer to breathe. Give a young, tannic red twenty minutes in the glass before you judge it. I’ve watched people write off a wine in the first sip that turned into something completely different by the second glass, purely because nobody gave it the chance to open. Free upgrade, no equipment required.

How long can I keep a bottle of wine?

Most wine on a shop shelf — red, white, or pink — is made to be opened within a year or two, and it won’t get better sitting in a cupboard. Only a smaller group actually improves in bottle, and structure is the tell: a wine needs real tannin, acid or sugar concentration built in to go the distance — if it hasn’t got them, drink it this year. Everyday wine under roughly £10 almost never falls into that group, and there’s no shame in that; it was never built to be a project.

If you do want to lay something down, look at the tannic reds — Nebbiolo, Cabernet Sauvignon, Syrah at the serious end. They hold up because those tannins soften and knit together slowly over years, and the wine’s colour will shift from deep purple toward brick red as it goes, with a bit of sediment forming along the way. That’s not a fault; that’s the wine doing exactly what it’s meant to do.

Here’s a rough shape of it, built from how the trade generally talks about ageing windows by style:

Style Typical drinking window
Everyday reds, most rosé, boxed wine 1–3 years
Beaujolais, southern Rhône, Languedoc reds 3–10 years
Rioja, Chianti, Douro reds 4–13 years
Bordeaux, Burgundy, Barolo, Barbaresco 4–25 years
Vintage Port 12–50 years

If proper Bordeaux at the top end of that table feels like a stretch for a Tuesday budget, that’s a fair instinct — most people’s isn’t. It’s part of why I always point curious customers toward second wines when they want a taste of a serious estate’s style without the wait or the price; I’ve written up how that works in second wines: how to drink a great château without the grand vin price.

What does the price on the label actually buy you?

A good chunk of it is simply the chain the wine passed through before it reached you. In Bordeaux, most châteaux don’t sell to drinkers directly — they sell to a merchant, often through a broker who arranges the deal, and each party along that chain takes its cut before the bottle ever reaches a wholesaler or a shop like mine. That’s not padding for the sake of it; it’s a system with roots going back centuries, built because moving wine from a vineyard to a glass at any scale has always needed people in between who know both ends of the trade.

British wine merchants sit a bit differently in that chain than some other countries, too. Independents here have long held a certain standing even though most bottles in Britain are actually sold through supermarkets, not specialist shops — and that’s been the shape of the market for decades. UK merchants have also tended to sell serious, mature bottles by the case rather than splitting them up one at a time, which shapes how an indie prices its shelf compared with, say, a corner shop or a big chain aisle.

None of that means expensive automatically means better — plenty of £8 bottles overperform their price, and plenty of £40 ones are coasting on a famous name. But it does mean the price tag is rarely arbitrary. Somewhere behind it sits a grower, sometimes a broker, a merchant, shipping, duty, and finally a shop that had to choose to stock it over a hundred other options. Which is the quiet promise of a small shop’s shelf: everything on it beat a hundred rivals to get there.

Questions customers ask us

What’s the actual difference between Old World and New World wine? Old World generally means Europe, with naming and rules built around place; New World means everywhere else, with naming built around grape variety. Style-wise the line’s blurrier than it used to be — plenty of Old World producers now make bright, fruit-forward wine, and plenty of New World ones are chasing restraint.

Is expensive wine always better? No. Price often reflects land, reputation and how many hands the bottle passed through, not purely what’s in the glass. Plenty of £8–12 bottles from less fashionable regions drink above their price simply because nobody’s paying a premium for the name yet.

Do I need special glassware to enjoy wine properly? Not to start. A decent, plain glass with room to swirl does most of what you need; the specialist shapes matter more once you’re comparing several wines side by side than for a single glass with dinner.

What’s the one thing worth checking on a label before I buy? Vintage and region together tell you more than either alone — a warm vintage in a cool region, or vice versa, changes the wine more than most single facts on the front label.

The merchant’s last word

I’ve been doing this long enough to know the questions people are embarrassed to ask are usually the ones worth asking first — slurping, ageing, why the label says “Chablis” instead of “Chardonnay.” None of it’s complicated once someone just tells you straight. That’s the whole point of a shop like this: less mystery, better glasses, more Tuesdays done right. Go on, browse the white wine cellar — bring the three-question rule with you, and see what catches your eye.

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Written by SommPills AI Merchant — our in-house AI, directed by real sommeliers.

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