Mayo Clinic Minute: Does one moldy berry spoil the whole bunch? - Mayo Clinic News Network (2024)

Spring is around the corner, which means the beginning of berry season. Berries can be a great source of potassium and vitamins C and K, and can also promote a healthy gut. While berries are among the healthiest foods to eat, if not stored properly, they can get mushy and grow mold. But a little bit of mold doesn't necessarily mean the whole batch goes to waste.

In this Mayo Clinic Minute, Dr. Nipunie Rajapakse, a pediatric infectious diseases expert, answers the question, "Does one bad berry spoil the whole bunch?"

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"Molds are very common in our environment. And they tend to thrive in areas where there's a lot of moisture and organic material," says Dr. Rajapakse.

Berries especially can develop a white coating on them that kind of looks like cotton or fuzz. A few moldy berries don't mean you have to throw out the whole batch. Dr. Rajapakse says to throw out the ones that look visibly moldy as well as any that might have been in direct contact.

"If more than about a quarter of the berries are moldy, you're probably best off getting rid of all of those berries. But, if the rest are looking healthy, they're not bruised, they're not soft and there's no visible mold on them, they're probably OK to eat after you've washed them well," she says.

If you don't notice the mold until you've already started eating, Dr. Rajapakse says there's no need to panic.

"It's unlikely to make you sick if you consume a small amount of mold. If you eat a large amount, there is the chance that you could get some digestive-type symptoms: stomachache, nausea, vomiting, but that's pretty uncommon. You'd have to eat quite a bit of the mold to feel ill."

To keep your berries fresher and mold-free longer, rinse them with vinegar and water, and store them on a dry paper towel in an open container in your fridge.

For the safety of its patients, staff and visitors, Mayo Clinic has strict masking policies in place. Anyone shown without a mask was recorded prior to COVID-19 or recorded in an area not designated for patient care, where safety protocols were followed.

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Mayo Clinic Minute: Does one moldy berry spoil the whole bunch? - Mayo Clinic News Network (2024)

FAQs

Mayo Clinic Minute: Does one moldy berry spoil the whole bunch? - Mayo Clinic News Network? ›

A few moldy berries don't mean you have to throw out the whole batch. Dr. Rajapakse says to throw out the ones that look visibly moldy as well as any that might have been in direct contact. "If more than about a quarter of the berries are moldy, you're probably best off getting rid of all of those berries.

Is the whole container bad if one strawberry is moldy? ›

When you find a few moldy pieces of fruit inside a container, throw out the moldy fruit and any pieces of fruit that are directly touching them. Take a close look at the remaining pieces of fruit: if there are no signs of mold and the fruit is not overly mushy, thoroughly wash the fruit prior to consuming.

Are blueberries safe to eat if they have mold on them? ›

Simply put, if a few berries develop some mold, which typically looks like cotton or fuzz, it doesn't mean you have to throw out the whole container, according to Rajapakse. You should just throw out the berries that are visibly moldy and any berries that may have been in direct contact with those moldy berries.

What to do if one strawberry has mold? ›

If you find mold on one of your strawberries, throw it out along with any other berries that were touching the moldy one. Next, carefully examine the berries you have left. Toss any that are very soft or bruised. If the rest look fresh, give them a thorough rinse and enjoy them.

Can you return moldy berries? ›

If your berries were purchased at a grocery store and you discover the mold the same day, return them to the store, which should either give you a refund or a replacement. If you love fresh, sweet strawberries, you'll definitely want to try this easy-to-make treat, Strawberry-Chocolate Greek Yogurt Bark.

Are all the berries bad if one is moldy? ›

A few moldy berries don't mean you have to throw out the whole batch. Dr. Rajapakse says to throw out the ones that look visibly moldy as well as any that might have been in direct contact. "If more than about a quarter of the berries are moldy, you're probably best off getting rid of all of those berries.

Is it okay to cut mold off strawberries? ›

If you have one strawberry with mold on it, throw it out. Then, carefully inspect the other strawberries for bruises and bad spots. Cut out the bad spots, and feel free to eat the remaining fruit.

What to do if I ate moldy fruit? ›

If you've eaten moldy food and it's too late to spit it out, don't panic. Unless you are immunocompromised or eat very large quantities of mold, you will probably be OK. But watch for any symptoms, the experts note.

Can you get food poisoning from moldy berries? ›

Even accidently eating a moldy berry is unlikely to make you sick. The shape and small size of berries helps protect them from the more dangerous molds that affect foods. Always refrigerate your berries when you get home. It's best to wash your berries just before you eat them since moisture can encourage mold growth.

How to remove mold from berries? ›

Vinegar Bath to Kill Mold

Discard any berries that show even a bit of mold. Combine 3 cups cold water and 1 cup white vinegar in a large bowl or salad spinner. Immerse berries and swish around for about a minute. Drain berries, then rinse with clean, cold water until any trace of vinegar aroma or taste is gone.

Is all the bread bad if one piece has mold? ›

Whether the loaf of bread has one spot of visible mold or multiple ones, the bread is unsafe to eat. According to the USDA's Food Safety and Inspection Service, when you see molds growing on bread, it is likely that the root of the mold has infiltrated much of the loaf, no matter if the loaf is whole or sliced.

When to not eat strawberries? ›

Strawberry consumption is not advised in specific situations, such as:
  • People suffering from diarrhea.
  • People with any type of digestive disorder.
  • People with diabetes or irritable colon.
  • People with renal insufficiency.
  • If you are allergic to strawberries, you need to talk to the doctor before including them in your diet.

Can I eat strawberries if one is moldy on Reddit? ›

Not safe. No. Do not eat it, the mold would have penetrated the rest of the strawberries regardless of whether it's visible, same with bread.

How long does it take for berries to go bad? ›

How Long Will Berries Last? Stored carefully in the refrigerator, blueberries and strawberries will last five to seven days. More delicate berries like blackberries, raspberries, and gooseberries last three to five days.

Does moldy fruit contaminate other fruit? ›

So, mold can easily migrate from one piece of fruit or vegetable to another that's touching it, said Tamika Sims, senior director of food technology communications at the International Food Information Council. “It's best to first throw away the moldy produce and inspect the produce touching it for mold,” she said.

Why are my berries getting moldy? ›

What Causes Battery Corrosion? Science! Corrosion is caused by a completely expected chemical reaction due to hydrogen gas building pressure and ultimately needing to escape from inside a battery. Batteries (especially alkaline batteries) have a tendency to leak with age and other factors, such as humidity.

Is it OK to eat a whole container of strawberries? ›

In general, consider a daily serving size to equal about 1 cup or eight medium strawberries. Your best bet is to eat strawberries (or any fruit) in moderation. If you consume too many fruit sugars and fibers, you may get digestive symptoms such as stomach pain, bloating, diarrhea, or gas.

Is it safe to use a container that had moldy food in it? ›

You can generally save moldy plastic unless it has grooves and pits in it. Plastic cutting boards containing lots of scratches and plastic containers with rough patches caused by too much time in the microwave are best discarded when mold is present.

Should you take strawberries out of the plastic container? ›

Moisture is an enemy of the fresh strawberry. The inclination may be to store them in airtight containers, but strawberries will rot more quickly when the moisture is trapped inside. Even the plastic containers in which many grocery store strawberries are packed are a bad choice for refrigerator storage.

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