The short answer: You can smoke on any grill. You put untreated smoking wood (chips or chunks) on the embers or in a stainless steel box over a burner, cook indirectly at around 100 to 160 degrees and keep the lid closed. The aim is thin, bluish smoke, not thick white smoke.
A rich smoky flavour is not the privilege of expensive smokers. With a handful of wood chips or a few chunks, you turn your ordinary gas or charcoal grill into a smoking chamber, with no conversion or extra equipment. All you need are a few basic rules on wood choice, heat and smoke appearance. Once you know them, you get a flavour out of ribs, pulled pork or fish that otherwise only the snack stand around the corner or the expensive steakhouse delivers. This guide shows you the technique step by step.
How does smoking on the grill work?
Smoking means letting wood smoulder, not burn. Smoke is produced during smouldering, that is, when the wood slowly gives off smoke with too little oxygen instead of blazing openly. This smouldering smoke settles on the food and gives it its flavour.
The colour of the smoke is decisive. The aim is thin, bluish smoke, known in English as “thin blue smoke”. This fine smoke tastes clean and round. Thick white smoke, on the other hand, contains many bitter compounds and quickly makes your food bitter and ashy. So if a white cloud billows out of your grill, something is wrong: usually too much wood at once or too little air.
When grilling, you almost always smoke hot, in the so-called low-and-slow range at around 100 to 160 degrees. For this you work with indirect heat: the embers or the burners that are switched on are on one side, the food on the other. This way the meat cooks gently while the smoke circulates. The lid should stay closed as much as possible, because every time you open it you lose smoke and temperature.
Which wood suits which meat?
The rule of thumb is: strong woods for strong meat, mild woods for delicate food. An intense mesquite suits beef but would overwhelm fish or poultry. Conversely, mild alder wood has almost no effect on a long beef brisket.
Use only untreated smoking wood from specialist retailers. Resinous softwoods such as spruce, pine or fir are strictly off limits: their resin makes the smoke bitter and is a health concern. The same applies to varnished, oiled or otherwise treated wood. Offcuts from furniture or pallets have no place in the grill.
| Wood | Flavour intensity | Particularly suited to |
|---|---|---|
| Hickory | strong, spicy | Pork, ribs, pulled pork |
| Mesquite | very intense, earthy | Beef, short cooking times |
| Apple (fruit woods) | mild, slightly sweet | Poultry, pork, fish |
| Cherry | mild and fruity | all-round, gives a reddish colour |
| Beech | mild, classic | Fish and sausage |
| Oak | medium-strong, balanced | Beef, game, lamb |
| Alder | mild | Salmon and fish |
Mesquite is the special case in this table: it quickly becomes too much and is better suited to short cooking times than to sessions lasting hours. If you are unsure, reach for a fruit wood such as apple or cherry. These mild, all-round types are the most forgiving of mistakes. You can find a larger overview in Fuel & Smoking Wood compared.
Chips, chunks or smoking dust?
The form of the wood determines how long and how strongly it smokes. Chips smoulder briefly and fiercely, chunks for a long time and evenly, and smoking dust is a special case for cold smoking. Which form is right depends mainly on your device and the cooking time.
| Form | Smoking time (rule of thumb) | Best device / use |
|---|---|---|
| Chips (shavings) | approx. 20 to 30 minutes | Gas grill, short dishes |
| Chunks (fist-sized) | approx. one hour or more | Charcoal, kettle, kamado, long sessions |
| Smoking dust | depends on the smouldering trail | Cold smoking with a cold smoke generator |
Chips ignite and smoulder quickly, but produce smoke only briefly and therefore have to be topped up for longer dishes. They are ideal for the gas grill and for anything that is done in under half an hour anyway. Chunks, on the other hand, are fist-sized pieces that smoulder on glowing coals for an hour or longer. They are the first choice for kettle grills, kamados and long low-and-slow sessions, because you do not have to keep adding more. Smoking dust is so fine that it is used mainly in a smouldering trail for cold smoking and plays no role in ordinary hot smoking.
Do you need to soak smoking chips?
No, soaking is not necessary and is often even counterproductive. The classic recommendation to soak chips for about 30 minutes beforehand persists stubbornly, but the evidence and many experienced grillers speak against it.
Wet chips initially produce mainly steam rather than smoke. The wood first has to dry before it even begins to smoulder, and this steam only delays the start instead of bringing more flavour. Dry chips, by contrast, start producing clean smoke faster.
A good compromise in practice: use chips dry, but in smaller portions, and top up as needed. This way you avoid the initial burst of steam and keep control of the amount of smoke. However you do it, one thing stays the same: softwoods are off limits in every case, whether wet or dry.
How do you smoke on a gas grill?
On a gas grill you smoke with a smoker box over a burner that is switched on, while the rest stays indirect. Here it is step by step:
- Fill a stainless steel smoker box with dry chips. Without a box, a foil pouch with chips and a few punctures as smoke holes will do.
- Place the box directly on a burner that is switched on, so the chips get hot enough to smoulder.
- Leave the remaining burners off or on a low setting, so that you cook indirectly.
- Wait until the box is smoking. Only when thin smoke rises do you put the food on the indirect side.
- Close the lid and keep it shut. Regulate the temperature with the active burners into the low-and-slow range.
On charcoal, kettle and kamado grills you do not need a box. There you put chunks or a handful of chips directly on the glowing coals, place the food on the indirect side and close the lid. You use the vents to set the air supply so that the wood only smoulders and does not burn openly. Which base of embers suits this is covered in the guide Charcoal or briquettes. A handful of chips or one to two chunks is usually quite enough.
Why does my smoked food turn bitter?
Bitter smoked food almost always has one of two causes: smoke that is too thick and white, or the wrong wood. Both can be avoided if you pay attention to the appearance of the smoke.
| Smoke appearance | Meaning | Result |
|---|---|---|
| thin, bluish smoke | clean smouldering | round, mild flavour |
| thick, white smoke | too much wood or too little air | bitter, ashy |
| barely visible smoke | wood too cold or gone out | little to no flavour |
By the way, the pink edge directly under the crust, the so-called smoke ring, is not a sign of raw meat. It is caused by a harmless chemical reaction in which nitrogen oxides from the smoke react with the meat. It looks nice and is completely safe.
Cold smoking needs to be clearly set apart. It takes place below about 25 degrees, for example for salmon, ham or cheese, and is something entirely different from hot smoking when grilling. Cold smoking requires prior curing and very careful hygiene. If done improperly, there are serious food risks, including botulism and listeria. It is not a beginner’s project for an ordinary barbecue evening and should only be done following sound, reputable instructions.
Conclusion
Smoking on the grill is not witchcraft, but a matter of a few basic rules: untreated wood to suit the meat, indirect heat at 100 to 160 degrees, a closed lid and thin bluish smoke instead of thick white smoke. Chips for the gas grill and short dishes, chunks for long sessions on charcoal and kamado. You can skip the soaking, and softwood and treated wood never belong in the grill. If you are unsure which device best suits your smoking style, the Grill Finder will help. Start with a mild fruit wood, watch the smoke, and your very first attempt will win you over.