Sick of chickens looking all 50 Shades of Grey on the grill? Read this sizzling post to cook birds that will make your guests cluck with joy!

Why chicken turns gray on the grill

As an avid backyard pitmaster, I’ve had plenty of grilling flubs over the years. Hockey puck burgers, charred hot dogs, and the dreaded transformation of golden chicken into ghastly gray meat.

It’s a bummer flipping up the lid to beautifully seared chicken only to find a bunch of sad, gray specimens staring back at you.

While not exactly pretty, there’s no need to toss gray chicken just yet! In this post, I’ll really dive into why chicken turns gray on the grill and share all my best tips so you can avoid this bummer of a scenario.

The Science Behind Chicken’s Natural Color

To understand why grilled chicken sometimes turns gray, it helps to first look at the science behind the natural color of raw chicken. That pinkish hue comes from a protein called myoglobin, which is responsible for the color of all meat. Chicken actually has the same myoglobin as beef, it just has less of it which leads to the lighter color.

When exposed to heat from grilling or any cooking method, myoglobin denatures. This means the protein structure changes, forcing out all the moisture that was trapped inside. Expelling this moisture is what shifts the color from pink to white as the chicken cooks.

Taken too far, even more moisture loss will cause the cooked chicken to turn from white to a dull, unappetizing gray. I learned this lesson quickly years ago when I foolishly tossed chicken right onto screaming hot coals. You can imagine how that turned out – burnt to a crisp on the outside, still raw in the middle, and smoked to an ugly gray color in between.

Why Your Chicken Grays – The Top Culprits

Now that we understand the science behind chicken’s color, let’s explore the most common reasons it can turn gray on the grill:

Grilling Spoiled Raw Chicken

We’ve all been there – you pull a pack of raw chicken out of the fridge and instantly get hit with that funky, rotten smell. If your chicken is already gray and slimy before cooking, do not bother putting it on the grill! Grilling spoiled chicken will not magically make it safe to eat. Always start with unspoiled, fresh chicken for the best results.

Pay close attention to expiration or sell-by dates and be sure to give the raw chicken a sniff test before preparing it. Even one whiff of that distinct sour, ammonia-like odor means it’s trash bound. Toss it immediately regardless of what you paid for it. It’s just not worth risking food poisoning, which lands over 100,000 people in the hospital each year.

Failing to Thaw Chicken Fully

In a rush? We’ve all been tempted to toss frozen chicken right onto the grill to save precious time. But taking shortcuts with thawing can also lead to depressing gray meat once it’s cooked. Here’s why:

  • The outer sections of the chicken thaw first, so those areas start to denature and turn gray before the inside finishes thawing.
  • All those frozen ice crystals inside the chicken create major moisture when they melt rapidly over heat. This prevents the Maillard browning reaction and leaves the surface soggy and pale.

I ruined many birds before learning to always fully thaw chicken in the refrigerator 1-2 days before I intend to grill. Giving it enough lead time prevents premature graying and also minimizes bacterial risks. In a pinch, you can speed thaw chicken under cold running water. But never throw frozen chicken directly on the grill unless you want to wind up with disappointing gray meat.

Grilling on Low Heat

Here’s another scenario that has played out far too many times in my backyard grilling career – I excitedly toss the chicken on the grill only to soon realize I forgot to light more than a couple puny coals. Doh! The result is always chicken cooked over low heat that turns out pallid, dry and downright gray.

The magic chemistry that gives grilled meat irresistible flavor and color is called the Maillard reaction. This browning process requires high heat ranging from 375-400°F to work its magic. With lower temps, the exterior of the chicken will turn gray long before the inside finishes cooking through.

While it’s tempting to use a lower heat to avoid charring, resist the urge! Properly browned chicken requires a scorching hot grill. Be patient and let those coals or burners preheat fully to avoid underwhelming gray poultry.

How to Detect Spoiled Raw Chicken

Since spoiled chicken is a prime culprit behind gray grill results, it’s good to know how to identify it before cooking:

  • Color – The meat will appear gray, green or yellow instead of pink. Dark or discolored spots are also a giveaway.
  • Texture – Spoiled raw chicken will feel slimy or sticky to the touch rather than smooth and moist.
  • Smell – This one is foolproof. Rancid chicken gives off an instantly recognizable rotten, sour odor. Trust your nose!

When in doubt, just throw it out to be safe. It’s simply not worth risking the high cost of food poisoning.

Why Grill Heat Matters

Browning reactions like the Maillard reaction need to happen between 375-400°F to properly brown and flavor chicken. With too low heat, the outside of the meat will turn gray long before the inside reaches a safe 165°F.

Always let your grill completely preheat and distribute heat evenly before adding food. Be patient – it takes 15-30 minutes for most grills to fully heat up. Gauge the temperature using an outdoor grill thermometer. Resist the urge to rush the process and risk sad gray chicken!

Frozen Chicken’s Graying Effect

Freezer burn aside, grilling partially frozen chicken almost guarantees disappointing gray meat. Here’s why:

  • The outer areas begin to thaw first on the grill, so those sections will turn gray before the inside fully defrosts. You end up with a gray ring around the outside with raw chicken in the center.
  • All that frozen water trapped inside rapidly turns to steam on the hot grill. This influx of moisture prevents the Maillard reaction, leaving the surface wet and pale instead of browned.

Moral of the story: Always plan ahead and fully thaw chicken in the refrigerator 1-2 days before grilling. While you can speed up thawing with cold water when pressed for time, resist putting even partially frozen chicken directly on the grill.

Foolproof Methods to Avoid Gray Chicken

Armed with the knowledge of exactly why chicken can turn gray on the grill, here are all my best tips to instead get picture-perfect, juicy results every time:

Start with Fresh, Unspoiled Chicken

Always begin with raw chicken that is fresh and unspoiled. Check sell-by and use-by dates and give the meat a sniff test. At the first whiff of funkiness, just throw it out. Also look for slimy texture and discolored or gray meat.

Thaw Completely Before Grilling

Make sure chicken is fully thawed in the fridge 1-2 days before grilling. If in a rush, thaw in cold water instead. Never grill even partially frozen chicken.

Get the Grill Hot!

Let your grill or coals fully preheat to at least 375°F before cooking. Use a grill thermometer to gauge temperature. High heat is crucial for browned chicken.

Monitor Temperature

Use an instant read thermometer to cook chicken to 165°F without overdoing it. Overcooking expels moisture and turns meat gray.

Let It Rest

After grilling, let chicken rest at least 5 minutes wrapped in foil before cutting to allow juices to reabsorb. Skipping this step causes dry, gray meat.

Clean the Grates

Degrease and scrub grill grates thoroughly before each use for optimal browning. Dirty grates prevent flavorful sear marks.

Brine for Added Moisture

Soaking chicken in a saltwater brine before grilling helps it retain moisture and prevents graying.


Whew, we covered a lot of ground here breaking down exactly how and why chicken can turn gray on the grill! The good news is that this bummer of a scenario is easily avoidable with the right techniques. Now that you know how to troubleshoot gray chicken, you’ll be a pro at serving up picture-perfect, mouthwatering grilled chicken every single time. Got any other grilling tips or tricks? Let me know, I’m always hungry to learn more!