How to Use a Disposable BBQ (Instant BBQ Tray Expert Guide)

The UK BBQ season is a truly special time. While most people in Britain do the bulk of their barbecuing from early May to late August, there are adventurous souls who start the season as early as March and end as late as December. Regardless of which of these groups you belong to, you’re probably looking for a quick, convenient, and affordable way to grill meat and vegetables outdoors.

Some of us have full-sized grills and a spot in the yard that’s dedicated to grilling. But most of us don’t and have to resort to portable and disposable BBQs. The latter option is extremely popular these days. Also known as instant BBQ trays, BBQ grill trays, or one-use BBQs, they are widely used for beach trips, park gatherings, and last-minute summer plans.

And it’s very easy to see why they’re so popular. Disposable BBQs:

• Can be bought at virtually any petrol station or supermarket
• Are very affordable, typically costing between £3 and £8 (for the large party options)
• Can easily be stored in the trunk of your car (in case of emergency BBQ)
• Take only a minute or two to set up (and are equally fast to extinguish)
• Are super easy to light (no firelighters and kindling necessary)
• Provide enough heat to grill pretty much anything (including steaks)
• Require minimal cleanup afterwards (just soak, drain, bag, and bin)

These advantages make them an extremely practical and convenient option for casual cooking. And although die-hard barbecue fans hate to admit it, most of them have a few instant BBQs stashed away nearby just in case (you can’t take your full-sized BBQ everywhere, after all).

To celebrate this unsung hero of each UK BBQ season, we’ve asked Lekto's in-house team of wood-heating experts to share their insights about disposable BBQs. We've been around for almost 10 years and are the UK's leading premium wood fuel brand. Although we predominantly specialise in 8-hour Night Briquettes, Fire Logs, and Hardwood Heat Logs, we used to have a dedicated product line of premium BBQ products, so our experts definitely know a thing or two about the subject.

This expert-written guide is designed to be the only material on the subject you’ll ever need to read (so bookmark it for later use). It will cover everything you need to know, including:

• Which instant BBQ is the best
• How to light a disposable BBQ
• When is an instant BBQ ready to cook on
• How long do disposable BBQs last
• Safety rules during BBQ season
• How to put out and throw away a BBQ properly

So what are you waiting for? Read on to learn everything you need to know about disposable BBQ grills!

Read Also:

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What Is a Disposable BBQ Grill?

Disposable BBQ trays are compact, single-use barbecue grills that come pre-filled with charcoal and a special lighting layer that helps you ignite all of the charcoal with ease. 

Here’s what you can expect to find inside a disposable BBQ grill:

• A lightweight, single-use aluminium grill rack
• Lumpwood charcoal (or charcoal briquettes)
• A fire starter sheet (or a bag enveloping the charcoal)
• A BBQ mesh grill mat (that’s where you’ll put your food)
• Optional: legs to lift the rack off the ground (and prevent damage)

Because everything is built in, the contraption functions as a complete, instant barbecue, requiring no setup beyond placing it on a level surface and lighting it. This simplicity, coupled with a low price and wide availability, is the main reason disposable barbecues are so popular with the British public during BBQ season.

How to Light a Disposable BBQ Properly

One of the biggest mistakes people make when using an instant grill is lighting it improperly. While lighting sheets and bags often make the process easy, many people still make mistakes that compromise their BBQ experience.

Lighting a disposable BBQ correctly is essential because poor lighting can lead to uneven heating, shortened burn times, and undercooked (or overcooked) food.

Follow the Lekto Woodfuels’ foolproof instant BBQ lighting algorithm below to enjoy perfect results.

Every. Single. Time.

Step-by-step Disposable BBQ Lighting Instructions:

• Take the instant BBQ tray out of its plastic packaging
• Place the tray on a flat, stable, non-flammable surface
• Raise it slightly using the supplied feet (alternatively, use bricks or a BBQ stand)
• Light the corners of the charcoal evenly with a lighter or grill matches
• Allow flames to spread across the entire surface

Now all that’s left is for you to wait. And this is important. It pays to be patient. Disposable BBQs are designed to ignite on their own. They do so gradually, evenly, and without any human input.

Under no circumstances should you attempt to 'speed up' the process by:

• Adding lighter fluid to the grill
• Using paper or wood chunks
• Blowing extra air into the fire

When Is a Disposable BBQ Ready to Cook on?

By far the biggest mistake people make when using instant BBQs is putting their food on too early. Until the coals turn white, they are still burning and are far too hot to cook on. Excess heat can cause food to be burnt on the outside while remaining raw (and unsafe to eat) on the inside.

Additionally, some single-use barbecue trays contain coals soaked in lighter fluid to improve combustibility. This is most common in instant BBQs using briquette-type coals, rather than those using lumpwood charcoal. If you have such a BBQ and put your food on too early, the coals might impart a nasty chemical taste on it (not to mention the toxins from the lighter fluid).

So, when is your instant BBQ ready to cook on?

Disposable BBQ Readiness Checklist:

According to Lekto’s wood heating experts, an instant BBQ is fully ready to cook on when all of these conditions are met:

• The visible flames have fully died down
• There is no smoke coming from the grill
• The charcoals are covered with white ash

How Much Time For Instant BBQ to Be Ready?

Exactly how much time will it take for all the flames to die down and the coals to be covered in white ash, signalling that they’re ready to cook on? The exact answer depends on the exact size and type of grill you have bought. As a rule of thumb, you can expect:

• Lumpwood charcoal instant BBQ (regular): 10 to 15 minutes
• Lumpwood charcoal disposable BBQ (party size): 15-20 minutes
• Charcoal briquette instant BBQ (regular): 15-20 minutes
• Charcoal briquette disposable BBQ (party size): 20-30 minutes

How Long Do Disposable BBQs Last?

One of the most-searched questions among first-time instant grill users during the BBQ season is: “How long do disposable BBQs last?”

The answer isn’t as straightforward as it might seem. While many instant BBQs quote 90 or even 120 minutes on their boxes, those numbers are optimistic at best. In most cases, they represent overall heating time, not usable cooking time.

A realistic figure? About 30-40 minutes of real cooking time for a regular-sized instant BBQ and around an hour for a party-sized one. 

That said, the actual performance of the instant grill can be limited by a variety of factors, the most important of which is food density on the grill. Putting too much food on at a time will limit the air intake, greatly lowering the cooking temperature. This means your food will cook more slowly. As a result, you may not be able to cook as much as you otherwise would.

Practical Tips For Getting the Most Out of Your Disposable BBQ:

• Cook in smaller batches rather than overcrowding the grill
• Avoid closing the airflow with too much food or by blocking the side vents
• Conversely, avoid giving the grill too much air by using less than 50% of its surface
• Use wind shielding where possible to control airflow.

What Can You Cook on a Disposable BBQ?

Disposable BBQs are designed for short, high-heat cooking, rather than long grill sessions. So choose your foods accordingly. Sausages, cheese, and vegetables are fantastic options for instant BBQs. You can even cook a few burger patties in a pinch. But don’t come in thinking you can cook large chunks of meat that require long cooking times.

The Best Foods For Instant BBQs

• Burger patties (just be sure to thaw them if they’re frozen)
• Sausages (all types, with the exception of the thickest varieties)
• Chicken skewers (an all-time UK instant BBQ classic)
• Cheese (halloumi, kasseri, queso panela, provolone, and grilling cheese)
• Vegetables (corn on the cob, onions, mushrooms, asparagus, carrots, bell peppers, zucchini, eggplant, cauliflower)
• Steak, but only if it’s cut into small chunks beforehand

Worst Foods For Instant Grills:

• Thick cuts of steak (although you can get away with thin cuts)
• Large cuts of any meat (the outside will start to burn while the inside will stay raw)
• Any recipe with slow-cook in the name (instant BBQ cooking times are very limited)

Lekto Expert Tip: Cut food into smaller pieces before placing it on the grill. This will reduce cooking time and improve consistency.

How to Use a Disposable BBQ Safely

Safety comes first. Here are some core safety rules to consider when using an instant BBQ grill:

• Choose your surface wisely. BBQs need to be placed on a level, heat-resistant surface
• Raise the grill off the ground to prevent scorching of the ground or surface
• Keep the BBQ away from dry grass and flammable materials at all times
• Never use instant BBQs indoors or on balconies

Additional precautions:

• Always keep some water or sand nearby for emergency fire extinguishing
• Never leave a burning BBQ unattended (even if you’ll only be a minute)
• Be cautious in windy conditions, as a strong gust can send the burning BBQ flying
• Remember that disposable BBQs can remain dangerously hot long after cooking ends

How to Put Out a Disposable BBQ

The food is cooked and eaten. Everyone’s happy. Time to pack up your things and go, right? That’s precisely where things can go horribly wrong. Knowing the correct way to put out a disposable BBQ is essential, as the vast majority of fires and burns occur after the food is cooked and you’ve let your guard down.

But don’t worry, our experts have created a foolproof system for putting out any disposable BBQ.

Algorithm For Putting Out an Instant BBQ

1. First, place the BBQ onto the sand or ground. If you don’t have a way of safely moving it, make sure there’s nothing beneath it that will be damaged by hot water.
2. Next, pour plenty of water over the charcoal. The water will start to boil almost instantly, cooling the embers. Instant BBQs have ventilation holes. Water will pour out of those. So if you have a limited supply of water, portion it out and pour a little bit at a time. 
3. Then, wait until the grill is completely cold. Next, wait until the BBQ is cold to the touch. Not ‘no longer hot’ or 'just a bit warm’. Cold. If some of the coals look hotter than others and you’re all out of water, use a stick or something else to stir them in the water. This will help cool them down faster.
4. Finally, drain the water and dispose of the BBQ. Once the coals are cold, they no longer pose a burning hazard and can be placed in the nearest rubbish bin.
5. Recycle if you can. Most instant BBQs are made from 100% aliminium. If you can, open up the grill, throw away the charcoal, wash off the leftover charcoal particles with water, and put the aluminium parts of the grill into the recycling. Mother nature will thank you for it.

Why Are Disposable BBQs Are So Popular in the UK During the BBQ Season?

Our wood heating experts have identified three main reasons why instant BBQs are so irresistible to UK consumers in 2026:

• Convenience. There’s no need for setup, extra equipment, or cleaning up afterwards. Simply put an instant BBQ in your backpack or keep a couple of them in the trunk of your car, and you’ll always be ready to grill.
• Portability. Unlike full-size BBQs, instant grills are inherently portable. They’re easy to pack, contain everything you need, and are waterproof. This makes them perfect for camping, hiking, and plenty of other outdoor activities.
• Accessibility. Affordable and widely available, both during BBQ season and outside of it. Many supermarkets have started stocking them almost year-round, as have some petrol stations. This makes them a perfect grab-and-go product for the BBQ season.

Disposable BBQ vs Traditional BBQ

 

The verdict? For quick, casual cooking, disposable BBQs are ideal. For longer sessions, a full grill is more suitable.

FAQ: Disposable BBQs

How do you light a disposable BBQ?

Light the corners of the coal packaging evenly with a match or lighter. Allow the flames to spread naturally. No additional fuel is needed.

When is a disposable BBQ ready?

When coals are covered with white ash, and the flames have died down. This can take anywhere between 10 and 30 minutes.

How long do disposable BBQs last?

Between 30 and 80 minutes, depending on their size, coal type, weather conditions, and how densely you pack your food.

How to put out a disposable BBQ?

Put the BBQ on a ground and pour water over the coals until they are cool.

Can you reuse a disposable BBQ?

Most instant barbecues are designed to be disposable after one use. However, some UK BBQ enthusiasts have been known to reuse the higher-quality ones by removing the grill mesh, pouring out the old coals, putting the mesh back on, and using lighter fluid to ignite the coals. If you elect to go this route, understand that you are doing this at your own risk and never reuse a disposable BBQ that has tears in the aliminium or has started to warm due to heat exposure.

Are disposable BBQs allowed everywhere?

No, they are not. But you can use them in most places where regular BBQs are allowed. Always check local rules, especially when planning to use them in parks and on beaches.

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