Technique

Smoking

Smoking infuses food with wood smoke aroma and flavor.

Cuisines

348

Dishes

In Practice

Cold smoke: <30°C ambient for 6-72 h — requires external firebox routing smoke through a cooling tube; used for lox, cheese, charcuterie. Hot smoke: 80-110°C for 2-12 h — barbecue brisket sits at 105°C for 12-14 h to render collagen. Wood selection: oak/hickory (assertive, beef), apple/cherry (sweet, pork), alder (delicate, salmon). Failure mode: smoking unsalted meat — surface water activity stays > 0.95 and smoke deposits without preservation effect, only flavor.

Background

Smoking is a technique that has been embraced by various cultures worldwide, each adding its unique touch. In Poland, the art of smoking is exemplified by Kielbasa, a sausage imbued with garlic and spices, smoked over hardwood. In Portugal, Alheira, a flavorful smoked sausage, reflects the country's rich culinary heritage. Meanwhile, in China, tea eggs are often smoked using tea leaves and spices, adding a distinct aroma. Each tradition uses different woods and spices, creating unique flavors and preserving methods.

How It Works

Pyrolysis of hardwood lignin (200-400°C) releases phenols (guaiacol, syringol — peat-smoke aroma), carbonyls (formaldehyde, acetaldehyde — antimicrobial), and PAHs (polycyclic aromatic hydrocarbons — flavor + carcinogen risk above 400°C). Smoke deposits onto meat surface and penetrates 5-15 mm, dropping water activity at the rind and adding antioxidant phenols that delay rancidity. Cold smoke (<30°C) preserves; hot smoke (60-90°C) cooks and preserves.

Hardwoodpyrolysis · smoulder not flamePhenols · carbonyls · aromatic smoke

Smoke on the surfaceflavor at the surface · color ring ~1 cm deepFlavored rind · mahogany color

Heat of the smoke — cold flavors · hot also cooks

The wood — hardwood only · the species is the flavor

A cure first — salt makes cold smoke safe

Two Smokes, One Fire

the mental model

Smoking splits at a single fork: how warm the smoke is when it reaches the food. Cold smoke only perfumes; hot smoke perfumes and cooks — and that one difference decides whether the food still needs curing to be safe. Underneath both is the same chemistry, a handful of compounds boiled off wood. Learn the fork and the compounds and you can read any smoked thing, from lox to brisket.

Cold smoke

below ~30°C · food stays raw

The smoke is cooled before it meets the food, so it flavors without cooking — the flesh never sets. Because nothing is cooked, cold smoke alone cannot make food safe: it must be salt-cured first to pull water down, then smoked. This is the road to lox, smoked cheese, and charcuterie.

Perfume, not heat · raw within.

Hot smoke

roughly 60–110°C · cooks as it flavors

The fire runs warm enough to cook the food through while the smoke works — gently for delicate fish, hotter on the barbecue pit where a brisket holds around 105°C for many hours until its collagen melts to silk.

Smoky and cooked · tender.

The compounds

what smoke actually is

Wood breaking down without flame throws off two useful families. Phenols from lignin — guaiacol and syringol — are the aroma and taste of smoke itself, and double as antioxidants that slow rancidity; guaiacol reads mostly as flavor, syringol as the smell. Carbonyls, off the cellulose, brown the surface into that burnished mahogany skin.

Phenol perfume · carbonyl color.

The wood

hardwoods only

Only dense hardwoods belong in the firebox — resinous softwoods like pine throw sooty, turpentine-bitter smoke and are off-limits. Within the hardwoods the species is a seasoning: oak and hickory come on strong for beef, apple and cherry go sweet on pork, delicate alder suits salmon.

The wood is the flavor.

Read the full story →

Cook One

Cure first, then smoke

Smoked Salmon with Brown Bread

Cold-smoked salmon is the clearest lesson: salt-cure a fillet for a day so it firms and its water drops, then hold it in cool smoke — under 30°C — for hours. The flesh never cooks, yet it turns silky, amber, and deeply smoky. You taste both jobs at once: the cure that made it safe, and the phenols that make it lox.

Start the cook-along →

Dish examples

348 dishes · 68 cuisines

'Nduja di Spilinga

Italian

Albóndigas en Chipotle

Chinese· 57 Spanish· 28 American· 26 French· 23 Thai· 18 Italian· 16

Through Time

Predates agriculture — paleolithic hearth caves show meat-rack residues. Roman *Apicius* records smoked sausages. Polish *kielbasa* and Portuguese *alheira* traditions stretch to the 14th century. Aaron Franklin's 2015 *Franklin Barbecue* and Meathead Goldwyn's 2016 *Meathead* canonized American barbecue smoking; René Redzepi's 2018 *Noma Guide to Fermentation* re-integrated cold smoke into Nordic fine dining.

Related cooking knowledge

Curing precedes smoking in nearly every charcuterie sequence (bacon, ham, smoked salmon). Barbecue smoking is the heat-application descendant — same wood-smoke chemistry but at higher temperature to cook through. Fermentation overlaps via smoked-then-fermented sausage. Braai sits adjacent but is grill-not-smoke-dominant.

CuringTechniquecompare →Barbecue SmokingTechniquecompare →FermentationTechniquecompare →BraaiConcept