How to Tell if Bread is Bad?

If you’re not sure how to tell if bread is sour, keep reading to find out how to spot stale and mouldy bread. Mouldy bread is not as tasty as fresh bread. Look for black or green moulds and other indicators of sour bread. This may indicate moulds like penicillium spores, which can cause food poisoning, or aspergillus spores, which can cause a skin reaction.

How to Tell if Bread Is Bad

When bread starts to smell or develop mould, it’s already past its prime. While it is still safe to eat, it might not be the healthiest option. If the bread has a distinct odour or a bad taste, you should throw it out. Even if it looks and smells fine, it may not be as fresh as you’d like. Regardless, stale bread is still edible, even if it has lost its freshness.

How to Tell If Bread is Bad?

You do not want to consume stale bread. It’s not just revolting, but it can also be dangerous to your health. The good news is that there are a variety of techniques to determine whether your bread has gone rotten. Let’s investigate further.

1. Your Bread is Growing Mold

Nothing is more revolting than discovering mould on your formerly lovely bread loaf. Whether pink, green, brown, black, or white, Mouldy bread should not be eaten. It would help if you didn’t try to toss out mouldy slices while keeping the remainder of the batch. While you’re unlikely to become ill after eating some of the “safe-looking” bread, be aware that you’re still consuming mould spores – even if they haven’t yet manifested themselves. Because of this, the bread functions as a sponge. If mould spores are found in one spot, they spread throughout the loaf, and other slices may take longer to develop noticeable mould.

Mouldy bread is usually spotted by smell, and the bread may look white, yellow, or black. The mould is usually harmless, but mould can be hazardous if inhaled or eaten. If you spot mouldy bread, throw it out immediately! If you find mould on bread, don’t waste your money! Instead, make sure to buy fresh bread that’s free of mould! The best way to ensure the quality of your bread is to check the mould and its colour before eating it.

The smell of mould is a vital sign of lousy bread. Mould can grow within the porous structure of bread. Using your nose to sniff a loaf of bread is one of the best ways to detect mould. Sourdough will often smell sour but will generally be pleasant. It should also be soft and moist. Also, the mould shouldn’t look dark. You can defrost your bread if it’s gone wrong.

2. There is an Odd Odor

Bread, after all, is supposed to smell like bread. There isn’t much unique flavour unless you’re dealing with a flavoured bread loaf like raisin, lemon, rosemary, etc. Bread with an unusual odour should be discarded since it has gone wrong. The smell of lousy bread is often vinegary or beer-like, not characteristic of the bread you’re eating, and it can sometimes smell simply plain strange and unattractive. Do not smell the bread if it has mould on it. While I doubt many people are eager to smell mould, some may be interested. However, smelling rotten bread can lead to accidental mould spore inhalation.

3. It Tastes Bad

If your nose isn’t cooperating and you need a second opinion, don’t be afraid to turn to your taste buds. When it comes to food, your taste buds are excellent at detecting whether or not anything has gone rotten. It’s not a pleasant experience, either. It will be unpleasant to eat lousy bread. It won’t be as unpleasant as sinking your teeth into an old piece of flesh, but it will have an unpleasant flavour that you can identify right away. Don’t cover it with French toast or grilled cheese if you notice an off-putting flavour. Spend a little more money on a new loaf of bread for your breading activities.

When the smell of bread is unpleasant, you can use it for toast, croutons, or bread puddings. Unless you’re looking for something crunchy and chewy, stale bread is probably OK to eat. If you’re unsure how to tell if bread is sour, read on to learn how to spot it. Once you know how to spot the smell, you can safely eat the bread.

4. It’s Rock Hard and Dry

Have you ever reached for a piece of bread only to find it to be as hard as a rock? Bread that has hardened and dried indicates it is past its prime. However, if the texture of the bread is the only difficulty, it can still be ingested.

You can make excellent breadcrumbs out of dried-up, hard bread. You may also try making French toast with butter and syrup or turning it into a pizza to hide the texture. More toppings and moisture added to stale bread are excellent.

Remember that distinguishing between fresh and dry bread can be difficult in some cases. Take, for example, sourdough bread. The loaf’s exterior is naturally crunchy, yet the interior is still flexible and soft.

How to Tell if Bread Is Bad

What Happens if Eat Expired Bread?

Nothing will happen most of the time, mainly if you only eat a small amount. Mould was a problem when eating expired bread. Mould, while unpleasant, does not usually cause illness. That is not to say that it is not conceivable. Vomiting and diarrhea are common digestive problems. You can eat bread after it has expired as long as it is mould-free. If it’s dry, toast it or grind it into bread crumbs to use in cooking. If eaten uncooked, it may have a stale taste. It is unlikely that you would enjoy it as usual, but it will not injure you.

How Long Does Bread Stay Fresh?

Each loaf of bread is different, but most bread may be kept at room temperature for up to a week if properly stored (bread box, brown paper bag, etc.). Bread can be kept in the fridge or freezer, but it must be covered to avoid drying out, and freezer burn. You can store bread in plastic wrap, a reusable zip-top plastic bag, or a bread box to keep it fresh for longer. Avoid storing bread in wet, airy areas, which might hasten mould growth. If you won’t be able to consume the loaf within two or three days, the best alternative is to freeze it.

What Is the Shelf Life of Bread?

Bread’s shelf life, or how long it lasts before going wrong, is influenced by various factors. Bread maintained at room temperature has a 3–7 days shelf life. However, this varies based on the ingredients, type of bread, and storage technique. While the shelf life of bread is short, the right way to store it is critical. The ideal way to store it is at room temperature. If you’re regularly using it, bread doesn’t need extra protection. When it’s in its unopened packaging, it’s OK to keep it at room temperature.

However, if it’s been left out, it will eventually go wrong. Use plastic storage bags or bread boxes for sliced bread to avoid this. Acidification is a classic bread preservation technique, and it’s also one of the sourdough mechanisms for extending the shelf life of baked items. A natural technique to acidify your dough and, hence, your bread is adding 1% vinegar to the flour weight.

Can Old Bread Give you Diarrhea?

Although it seems unlikely, everyone’s immune system is unique. You may experience diarrhea and vomiting for a day or two if you ingest too much old bread (mainly if it contains mould). This can also happen if you are allergic to mould found in aged bread. You may experience diarrhea and vomiting for a day or two if you ingest too much old bread (mainly if it contains mould). This can also happen if you are allergic to mould found in aged bread.

Foodborne illness can result from eating spoiled bread. You can recognize the symptoms by tasting the bread. If it tastes stale or is firmer than average, it could be infected with various pathogens. Additionally, mouldy bread is unsafe to eat, and it can even be harmful to people with respiratory illnesses or sensitivity to mould. Consider storing the bread in the freezer for up to 6 months if you’re unsure.


Sourdough bread is a good indicator of stale bread. After a day in the oven, the water molecules begin to dissolve and leave the starch molecules. The starch molecules return to a crystalline form, which stiffens them up and affects the texture. You can also use stale bread to make breadcrumbs. Stale bread can be used as a source of protein in many recipes.

The appearance of mould on the bread’s surface should be a red flag for staleness. If you can still reheat it in the refrigerator for a few days, you can keep it for another day. If you’re unsure of the freshness of bread, you can freeze it to extend its shelf life. Yogurt is another type of bread that will last well past its expiration date but should be discarded if it starts to grow mould.