Welcome to Ryan's Grilling Tips: Fuel and Fire.
In an earlier blog, I suggested ways you can up your grilling game by getting the right tools. We also discussed the pros and cons of using a gas grill versus wood or charcoal, and I mentioned that all the grills I personally own are charcoal. Why? Even though there are some advantages to a gas grill (such as ease of start-up and cleanup), it will never match the taste and temperatures you can reach with a charcoal grill. For me, it's worth dealing with the downsides of charcoal in exchange for those deep, smoky flavors!
But how do you get the incredible taste that only a charcoal grill can achieve? It all starts with mastering two things: Fuel and Fire.
At Culinary Crafts we always say that great food starts with great ingredients, and when it comes to grilling, charcoal isn’t just a heat source; it’s an ingredient. Unlike cooking in a microwave or oven (or even on a gas grill), the fuel you use in a charcoal grill will flavor your food dramatically, so it’s important to choose your fuel carefully.
My favorite fuel—at least for grilling steaks—is lump charcoal.
Lump charcoal is made by burning away all the sap and other volatile impurities in the wood, leaving thick black chunks of carbon. The water and gasses in the wood are also burned off, but not completely, which is why lump charcoal sometimes sparks and pops when you heat it, as little gas pockets expand and explode. It’s not dangerous, but it can get pretty exciting!The main advantages of lump charcoal are
- it gets hot quickly (in 10 to 15 minutes).
- it reaches very high temperatures (up to 1400°F) which allows you to give food a wonderful char.
- it burns more completely, leaving behind less ash.
- it gives a clean, flavorful smokiness to your food.
The downsides to lump charcoal are that it’s a bit more expensive and it burns quickly, so you’ll need to keep adding charcoal for longer grills.
The most popular type of charcoal—the kind I use for barbequing or for lower-temp grills—is briquettes. Briquettes are basically crushed charcoal held together with starch. If they have no other additives, they’re called “natural” or “hardwood” briquettes. Briquettes can be made from many kinds of wood, but I mostly use mesquite for its strong, flavorful smoke. Hickory is also great. The bags you buy in the store don’t always list what wood it’s made from, but if the briquettes are dense (i.e. the bag feels heavy for its size), it’s probably good wood.
The main advantages of briquette charcoal are
- it’s readily available.
- it’s less expensive than lump charcoal.
- it’s easy to fit onto your grill and move around to control your fire.
- it gives a more consistent grilling temperature.
- it burns longer (100 briquettes ought to let you grill for up to an hour).
The biggest disadvantage to briquettes is that they won’t burn nearly as hot as lump charcoal (briquettes max out around 800°F), but for barbequing and for grilling some foods that’s okay.
Briquettes can also be a little more difficult to light, but using a chimney starter will solve that problem. (See below.) If you want to give your charcoal some help by dousing it with lighter fluid, that’s okay too, so long as you leave plenty of time—at least 30 minutes—for the lighter fluid chemicals to burn away before you start to grill. Don’t ever add lighter fluid after the fuel is hot! Some brands of briquettes are pre-soaked in lighter fluid, but I don’t recommend ever using those types of briquettes. The chemicals will not completely burn away, and they will give your food a nasty flavor.
Unless you’re out in the wild and grilling over a campfire, using raw wood for your sole fuel is not ideal. Wood is full of tar and other contaminants that will produce a thick, dirty smoke when burned. Most people don’t like the flavors it adds to food. Scraps of construction lumber make even worse fuel for grilling because they’re treated with chemicals.
That said, there are ways that raw wood can be used in your grill to add great flavor. Pure wood chips, soaked in water, can be dropped directly on top of your charcoal to add aromatic flavors of your choice. I love the strong smoke from mesquite, hickory, or oak wood chips. Woods like cherry, apple, or plum add a nice fruity flavor, but stay away from soft woods like pine, cedar, or fir. Their smoke tastes terrible.
PRO TIP: If you’re using a gas grill, you can still add smoky flavor to your food by burning woodchips in a smoker box or in a tinfoil packet with holes punch in it. Just place the foil packet over a heat source where it will slowly smoke and burn. You can also add dried rosemary or basil for another level of flavor. (Leave the stems on.) For a rich, fruity flavor, save and dry your grapevine cuttings and add them to your fuel.
Once you know what you’re going to be burning, it’s time to talk about how. The first concern, of course, is safety.
Set Up Safety
- Set up your grill safely far away from potential fire hazards like structures or low-hanging trees. (Anticipate possibilities like things falling or being blown around by wind.)
- Position your grill where pets, children, or foot traffic won’t accidentally bump into it.
- Think about the mess. I’m not just talking about the ash; I’m also talking about the mess from the food itself. For example, if you’re grilling meat, you’re always going to have drippings, so don’t set up your grill on any decorative or porous surface. Stay away from concrete, nice flooring, or patio wood if you can. Grass is good.
- Arrange your tools and space ahead of time. When you’re holding a scorching-hot chimney in one hand and tending to a sudden flare-up with the other, it’s too late to be thinking about where you’re going to safely put things down.
- Don’t wear anything loose like a tie or dangling, long hair while you’re grilling.
- Keep “helpful” neighbors and everyone else at a safe distance from your fire.
- If you ignore our advice and use self-igniting briquettes, at least don’t use them in a chimney or with an electric coil starter.
- Once your fire is going, never leave the grill unattended.
- Be careful when opening the lid of your grill. When you turn or move meat, be especially alert for flareups from melting fat falling onto your coals.
- Wear proper protective gear and don’t set hot items near flammables, where someone can accidentally touch them, or where they can be knocked over by the wind.
- Have a functioning fire extinguisher and/or a water hose nearby, just in case.
When you’re grilling, you also need to be careful about the way you handle your food.
- Wash your hands thoroughly before and after handling food, especially raw meat.
- Keep your plates and platters clean. Don’t put cooked foods onto the same plate with raw foods or where raw meat has been.
- Keep your tools clean too. If you use a fork or tongs on raw meat, wash it thoroughly before you let it touch any cooked food.
- Especially for less experienced grillers, it’s a good idea to use a meat thermometer to check your food and make sure it reaches the recommended internal temperature.
- Don’t leave uncooked, perishable food sitting out (even to thaw) for more than 2 hours. In hot weather, don’t leave it out for 1 hour.
- Don’t put grilled food into your fridge until it’s had time to cool off. Putting hot food into your fridge can change the temperature enough to make your other food spoil.
Planning Your Fire
Once you’ve set up your space to grill safely, it’s time to think about how you’re going to arrange your fuel and build your fire.
A good fire takes planning. Think about what items you’ll be cooking and what temperatures each of them will need. You may also choose to leave room on your grill for wood chips and/or an aluminum pan to catch meat drippings. Personally, I like to let fat drip right onto the charcoal. I love the added flavor from the smoke of the burning fat, and I don’t mind dealing with the flames of an occasional flare-up by temporarily shifting my meat to a cooler zone.
You also need to plan out your grilling schedule. Charcoal takes time to heat, and after you put your hot coals onto the grill, you’ll need another 10-15 minutes to let the grill itself get hot before you start cooking. Coordinate your schedule so that your meats will be well-rested and your other food will be coming off hot and juicy right when everyone’s ready to eat.
Light It Up!
If you’re using briquettes, the best way to light them is to use a charcoal chimney. Open the air vents of your grill, remove the cooking grate, and set the chimney on the charcoal grate. Fill your chimney with charcoal. (One chimney full of briquettes should be enough to grill four thick steaks.) Use lighter fluid if you want, but as I said, a chimney makes lighter fluid unnecessary. Pile a wad of newspaper under the chimney and light the paper. The bottom briquettes will heat up and light the briquettes above them.
When the top coals in the chimney are lightly glowing or are flickering with flames, they’re ready. Using thick gloves and following the manufacturer’s instructions, carefully turn the chimney over to dump the briquettes onto your charcoal grate. Use a charcoal rake to arrange them according to your plan to create your temperature zones.
Replace your cooking grate and wait for it to heat up. By the time your briquettes finish turning ashy white, you shouldn’t have any more tall, yellow flames. You want your flames to be low and blue or red; that means that your fire is burning hotter and more efficiently. You should be seeing only a small amount of clear-ish colored smoke from your briquettes. The hotter your fire burns, the cleaner the smoke will be. Remember, thick, black smoke is dirty smoke, and no one wants that in their food.
After 10-15 minutes, check the temperature. To do the popular “hand test,” place your hand about four inches above your coals, approximately at the height where your food will be placed. (Don’t touch the grate, obviously.) See how long you can comfortably keep your hand there. If you can hold it there only 1 or 3 seconds, your grill is at a high cooking temp. 4 to 7 second means you’re at a medium heat, and 10 seconds or longer means you have a low temperature.
For grilling steaks, pork chops, burgers, or thin veggies you’ll want a high temperature. Medium heat is great for chicken, fish, or thickly-sliced veggies. For larger or tougher cuts like ribs or brisket, you’ll want to grill them at low heat for longer times.
If you need to decrease your heat, try cutting off some of the oxygen to your fire by partially or fully closing the grill’s air vents.
To turn up the heat, try increasing the airflow by opening the vents. Raking the coals or breaking your charcoal into smaller pieces will increase the surface area that can burn, which will also raise the heat. Just be careful not to knock ash onto your food. If those methods don’t work to increase the heat, you probably just need to add more fuel.
Don’t worry if you encounter some difficulties building your fire, creating your grill zones, and keeping their temperatures constant. Learning to master fuel and fire takes practice. But now that you’ve got the basics, it’s time to turn our attention to the food.
That, my friends, is the subject of our next grilling lesson! Stay tuned.