Does Charcoal Go Bad?

Charcoal grilling is a favorite summer pastime for many. The smoky aroma and flavor of food cooked over a charcoal fire is irresistible. However, charcoal has a shelf life. If not stored properly, it can go bad. Moisture is the enemy of charcoal. Over time, it will absorb ambient moisture and degrade in quality. Stale charcoal burns poorly and can impart off-flavors to your food.

We’ll cover everything you need to know about charcoal freshness and shelf life. You’ll learn how to store charcoal to maximize its lifespan. We’ll also provide tips on identifying when your charcoal has expired and is no longer usable. With the right storage methods, you can keep charcoal fresh for over a year. Let’s get grilling!

The Shelf Life of Charcoal

How long does an unopened bag of charcoal last? Properly stored, charcoal briquettes can last over a year past their production date before going bad. An unopened bag prevents moisture absorption, which is the main cause of charcoal degradation. Once opened, the lifespan of charcoal decreases significantly if not resealed carefully.

According to Kingsford, the largest manufacturer of charcoal briquettes in the United States, their charcoal has a guaranteed shelf life of two years from the production date if stored properly. Other experts estimate charcoal lifespan between one to three years maximum from the packaging date.

Signs Your Charcoal Has Gone Bad

Stale, degraded charcoal will be evident from the moment you open the bag. Here are the telltale signs that your charcoal has absorbed excessive moisture and can no longer burn effectively:

• Crumbling briquettes – As charcoal absorbs moisture, it softens and falls apart easily. Fresh charcoal briquettes are hard and sturdy.
• Mold growth – You may see white or colored fuzzy mold on stale charcoal briquettes. This is a clear sign it has been exposed to moisture.
• Lack of “charcoal” smell – Good charcoal has a distinct earthy, smokey aroma. Old charcoal loses this smell.
• Poor burning – Bad charcoal is hard to ignite, burns slowly, and may emit more smoke but less heat.
• Unusual flavors – Food cooked over bad charcoal may have a funky, chemical-like “off” flavor.

If you notice any of these issues, it’s time to throw out that bag of charcoal and get a fresh supply. Burning degraded charcoal can ruin a perfectly good cookout.

How to Store Charcoal Properly

Here are some tips on storing charcoal correctly to maximize freshness:

• Keep it dry – Moisture is public enemy #1 when it comes to charcoal longevity. Store in a dry area away from sources of moisture like spigots and gutters.
• Use airtight containers – Transfer charcoal from paper or plastic sacks into sealed plastic bins, metal garbage cans, or even five-gallon buckets with tight lids. Oxygen accelerates deterioration.
• Avoid temperature extremes – Don’t store charcoal bags or containers in areas with large temperature swings like garages and sheds. The ideal storage temperature range is between 55°F to 85°F.
• Keep bags sealed – After opening a sack of charcoal, carefully fold or wrap the bag tightly and seal with tape or clamps to block air and moisture.
• Use oldest charcoal first – When restocking new bags, put fresh charcoal behind older stock and use oldest charcoal first before it has a chance to degrade.
• Watch out for pests – Rodents and insects are attracted to charcoal bags. Keep storage areas clean and use bait/traps if needed.

Key Charcoal Storage Tips

With proper storage conditions, you can easily get over a year of shelf life out of your charcoal. Just keep it dry, sealed, and pest-free. Now let’s look at the best way to store different types of charcoal.

How to Store Charcoal Briquettes

Charcoal briquettes, like Kingsford, are extruded into uniform block shapes and burn consistently. Here are some briquette storage tips:

• Use original packaging – Most briquettes come in moisture-resistant sacks. Leave in bag until use.
• Repackage carefully – When opening a sack, transfer any unused briquettes into an airtight plastic bin or sealable metal can.
• Avoid plastic bags – Regular plastic bags allow moisture transfer. Use only high-quality, airtight plastic containers.
• Watch for pests – Rodents can chew through sacks. Transfer to pest-proof bins and watch for droppings.

With proper repackaging, you can expect charcoal briquettes to stay fresh for over a year past the production date on the packaging when stored in a cool, dry spot. Just keep moisture out and use oldest briquettes first.

Storing Lump Charcoal

Lump charcoal, made from wood rather than extruded briquettes, usually comes in 10-20 pound paper sacks. Here are some tips for keeping lump charcoal fresh longer:

• Transfer to airtight bins – The paper bag provides minimal barrier to moisture and air. Use plastic bins or metal cans.
• Separate brands – Lump charcoal varies widely in quality. Keep the good stuff isolated so brands don’t mix.
• Check for bugs – Some brands of lump charcoal have been found to contain larvae. Inspect carefully and avoid bags with live insects.
• Use quickly – Lump charcoal tends to degrade faster than briquettes. Try to use within 6-9 months of opening for best results.

With some care taken to keep air and moisture away from lump charcoal, it can stay fresh and burn evenly for around a year after opening.

Storing Single-Use Charcoal Pouches

Many grilling purists look down on single-use charcoal pouches. But they offer an ultra-convenient option for tailgating, camping, or small grills. Here are some storage considerations:

• Respect expiration dates – Single-use pouches have shorter shelf lives of around 6-9 months. Don’t stockpile.
• Keep pouches sealed – These pouches are designed for one-time use. Store in original packaging until ready to grill.
• Avoid high heat – Don’t store pouches in hot areas like garages or cars, even if sealed. High heat can accelerate deterioration.
• Use quickly after opening – Unlike resealable bags of briquettes, pouches are not designed for opened storage. Use immediately.

Single-use pouches make charcoal portable and easy to use. But don’t expect more than 6-12 months of shelf life, even with proper storage.

How to Tell When Charcoal Is Bad – FAQs

Got questions about how to identify stale, unusable charcoal? Here are answers to some frequently asked questions:

How do you know if charcoal is still good?

Look for crumbling, lack of “charcoal” smell, trouble igniting, increased smoke, and off-flavors. If in doubt, compare to fresh charcoal.

What happens if you burn old charcoal?

Bad charcoal may not burn hot enough or long enough for proper cooking. It can create unpleasant smoke and odors that transfer to food.

Can you use charcoal that gets wet?

Wet or damp charcoal is unsafe to burn and will not stay lit. Always use fully dried charcoal. Discard any that gets wet before use.

Is it OK to use charcoal that’s been sitting for years?

While charcoal can last over a year if stored properly, its best to use sooner than later. Very old charcoal tends to burn poorly.

Does heating charcoal in the oven refresh it?

No, reheating charcoal does not reverse degradation from moisture or make it burn better. Stale charcoal should be discarded.

Conclusion

With the right storage and handling, charcoal briquettes, lump charcoal, and single-use pouches can stay fresh for over a year past the packaging date before going bad. Keep your charcoal stash dry, pest-free, and sealed in airtight containers away from temperature extremes. If stored properly, charcoal lasts a long time.

Carefully inspect charcoal for signs of moisture damage like crumbling, mold, lack of aroma, and poor ignition before use. Stale charcoal can ruin a grilling session. Maintain a first-in, first-out system and use up older charcoal before cracking into fresh bags.

Now that you know how to maximize charcoal freshness and shelf life, you can always have perfectly fresh charcoal ready for summer cookouts and smoking sessions. Just remember to keep it dry, sealed, cool, and pest-free. Happy grilling!