Why does my steak have a metallic taste?
During wet aging, the meat sits in its own juices causing the beef to have a wet, metallic taste. But wet aging was much more cost-effective for processors.
What Does Bad Steak Taste Like? While it isn't recommended to check for spoiled steak by tasting, meat that has gone bad will have a rancid taste. If your steak tastes extremely sour or bitter, it's definitely gone bad.
Aged steak typically tastes decidedly beefy, much like a rare roast beef, while also taking on subtler hints of other delicious flavours, such as warm buttered popcorn. It can also taste somewhat nutty, and can sometimes veer into the cheesy category.
A metallic taste can indicate a serious illness, such as kidney or liver problems, undiagnosed diabetes or certain cancers. But these reasons are uncommon and typically accompanied by other symptoms. If you're otherwise healthy, the cause for that metallic tang typically is benign.
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Common causes of metallic taste.
Cause | What you can do |
---|---|
Indigestion | the taste should go away after treating indigestion |
Being pregnant | the taste is usually temporary and clears up by itself |
The meaty taste is the product of the chemical breakdown of the molecules that make up meat. The breakdown of proteins, sugars and fats due to Maillard reactions results in the aroma and taste of meat.
- It's out of date.
- It's slimy.
- It's discolored.
- It's dry.
- It smells bad.
Sour-tasting steak is an indication of the way the steak was aged. A sour taste, resembling sour cream or buttermilk, indicates that the steak was wet-aged. Dry-aged steak's flavor profile includes nutty, earthy, beefy flavors.
The Ribeye is generally considered to be the most flavourful steak. These steaks are cut from the ribs and contain a lot of marbling throughout. The muscle from where the Ribeye is cut, isn't used often so the meat is very tender.
Kick things up a notch by rubbing your steak with chili powder, cayenne pepper, smoked paprika or ground cumin. These smoky, spicy ingredients add a ton of depth and accentuate the steak's naturally beefy flavor.
What does it mean when meat is metallic?
Meat contains iron, fat, and many other compounds. When light hits a slice of meat, it splits into colors like a rainbow. There are also various pigments in meat compounds which can give it an iridescent or greenish cast when exposed to heat and processing. Iridescent beef isn't spoiled necessarily.
When acidic ingredients are cooked in “reactive” pans, such as those made of aluminum or unseasoned cast iron, trace amounts of molecules from the metal can loosen and leach into the food. Although these minute amounts are not harmful to consume, they may impart unwanted metallic flavors.

Substances that contain metals — such as iron, zinc, and copper — can also cause a metallic taste in the mouth. Experts believe that this happens when the mineral causes oxidation of the salivary protein. Prenatal vitamins and calcium supplements may have this effect.
Heterocyclic amines (HCAs) and polycyclic aromatic hydrocarbons (PAHs) are chemicals formed when muscle meat, including beef, pork, fish, or poultry, is cooked using high-temperature methods, such as pan frying or grilling directly over an open flame (1).
Spoiled Steak FAQs
Spoiled meat has a strong smell that still has an odor reminiscent of steak but with undertones of ammonia. Some steaks may also have an egg-like smell. If your steak is past its expiration date and has an off-putting smell, it's likely not safe to eat.
Umami (/uːˈmɑːmi/ from Japanese: 旨味 Japanese pronunciation: [ɯmami]), or savoriness, is one of the five basic tastes. It has been described as savory and is characteristic of broths and cooked meats. Umami.
What Happens if You Eat Bad Steak? If you eat spoiled steak, you're likely to get food poisoning due to several different types of bacteria that grow in the meat. These are common signs of food poisoning, according to the CDC: Upset stomach.
According to the National Health Service, food poisoning symptoms include vomiting, (bloody) diarrhea, stomach cramps, and a loss of appetite. These effects of eating spoiled meat can be noticeable within the first two days and can last up to four days to potentially a week.
Side effects of eating bad beef
Spoiled ground beef is dangerous to eat because it may contain pathogenic bacteria, which are responsible for foodborne illnesses. Symptoms include fever, vomiting, stomach cramps, and diarrhea — which may be bloody ( 9 , 10 , 11 ).
Dysgeusia is a taste disorder. People with the condition feel that all foods taste sour, sweet, bitter or metallic. Dysgeusia can be caused by many different factors, including infection, some medications and vitamin deficiencies. Treatment involves addressing the underlying cause of dysgeusia.
Is steak an acidic food?
Acidic: meat, poultry, fish, dairy, eggs, grains, alcohol. Neutral: natural fats, starches, and sugars. Alkaline: fruits, nuts, legumes, and vegetables.
The food creates an acidic environment in your body.
Animal proteins (like meats, poultry, and fish) are considered high PRAL (acid forming), as they are made up of amino acids that, when broken down in the body, create a more acidic environment.
Best rare: Flatiron, Top sirloin, Paleron. Best medium rare: - Ribeye / rib steaks, NY strip / shell, Porterhouse / T-bone, Tri-tip, Flank steak, Sirloin flap, Filet mignon, Top round (if not raw), Hanger steak, Chuck eye / chuck steak. Best medium: Skirt steak, Chuck short rib, Chuck flap.
Rib Eye steak
Served with or without the rib bone still inside, this cut of meat is marbled and very full of flavour. It adds a real depth of flavour to the meat as it melts and makes for very good eating. The rib eye is the “meatiest” tasting steak because of this.
Ribeye is America's favorite cut of steak, enjoyed by 61% of survey respondents, followed by filet (47%) and T-bone (43%).
Wagyu beef originates from Japan and is considered by many the best beef on the planet. With the name meaning “Japanese Cow” (wa = Japanese, gyu = cow), it can be found in four different types of Japanese cattle.
Ribeye. The ribeye is the juiciest, most marbled steak. It's cut from the center of the rib section and sold as bone-in or boneless steak. Ribeye has more flavor than a filet mignon, but it's also slightly chewier.
In a half of a beef, there are approximately 12 roasts, 14 t-bone steaks, 5 sirloin steaks, 5 sirloin tip steaks, 14 rib-eye steaks, and 6 round steaks. There are also short ribs, flank steak, stew meat, brisket and approximately 75# of ground beef.
In short: The longer you cook a steak, the dryer and tougher it gets. Since the flavor of a steak comes from the juices, it makes sense to retain as much of those as possible.
Chef Michael Lomonaco says the best way to order steak is rare to medium rare. Medium rare is the most ideal because it provides the best and truest flavor of the beef, and allows for a charred outside and cool interior. Anything above medium-rare starts to take away from the texture and flavor of the beef.
What can cause food to taste metallic?
- Dental issues, such as a tooth infection or gum disease.
- Sinus problems or a sinus infection.
- Gastroesophageal reflux disease (GERD)
- Diabetes.
- Chronic kidney disease.
- Metal toxicity (such as from the ingestion of lead, copper, or mercury)
Though rainbow meat looks suspicious, there's nothing wrong with it. That metallic sheen is just an optical trick that that affects the looks but not the taste or safety of your lunchmeat.
Dysgeusia is a taste disorder that causes foods to taste weird. In most cases, this altered sense of taste goes away on its own. Dysgeusia can be triggered by a virus like COVID-19 or the common cold. It can also be a side effect of chemotherapy or other medication.
Acidic foods are common triggers of acid reflux, which can increase the chances of having metallic taste. Citrus fruits, juices, tomatoes, pineapple and vinaigrette salad dressings all have high acid content.
Iridescence is a physical phenomenon that results in shiny, rainbow-like colours (e.g. green, red, orange) seen in raw and cooked meat products, e.g. sliced roast beef and ham products. Meat contains iron, fat, and other compounds.
Silage is frequently a culprit in grassfed beef with poor flavor, commonly imparting a metallic taste. Typically, the higher the moisture content of the silage (over 30%), the worse the flavor of the beef. That said, some degree of sour flavor can be expected with even quality silage due to its low pH.
Meat products made from these animals will contain heavy metals, which is the main reason for the excessive amount of heavy metals in meat. The heavy metals that should be controlled in meat products mainly include lead, cadmium, arsenic, mercury and chromium.
Tasting the meat beforehand could be both good and bad. It's common knowledge that meat that tastes sour/bitter has gone bad, but it's not always good to taste it if you're suspicious.
Diet is one of the most influential factors that impacts beef flavor and aroma. This is because the dietary nutrients cattle consume directly impact the fatty acid profile and nutrient profile of their fat. One of the most-common mantras in the meat industry is that fat is flavor.
Taste bud changes can occur naturally as we age or may be caused by an underlying medical condition. Viral and bacterial illnesses of the upper respiratory system are a common cause of loss of taste. In addition, many commonly prescribed medications can also lead to a change in the function of the taste buds.