How to know if beans are spoiled (5 methods)

In this brief guide, we are going to answer the question “how to know if beans are spoiled”, discuss the different methods of identifying which beans are spoiled and the potential health effects of eating spoiled beans.

How to know if beans are spoiled?

We will tell you five easy ways to know if beans are spoiled. Spoiled beans show brown spots and exhibit incredibly soft texture and shrink structure. When beans show the Colour of dark-yellow or something like that, it means beans are getting bad. The foul and robust smell of beans means that they are spoiled. Spoiled beans taste bad and bitter.

Beans belong to the family of plants called Fabaceae. People eat beans around the world as it is a rich source of vitamin B and fibre. It replaces meat as it is a good source of plant protein. Beans have so many health benefits as it helps in lowering blood glucose level and blood pressure. It also helps in increasing healthy gut bacteria. 

Signs to know if beans are fresh or spoiled:

Following hygienic and proper safety techniques can prevent us from foodborne illness. These signs can help us in identifying if the food is edible or not.

Seeing the texture of beans:

The texture of beans helps a lot in identifying fresh beans. We can quickly notice that fresh beans are bright, and they snap easily while the spoiled ones are dry in appearance. Different types of beans show other appearances. Spoiled beans show brown spots on them. Fresh beans have a firm texture and are slightly hard to touch. 

But when beans get spoiled, they exhibit an incredibly soft texture and shrink structure. With time as the beans get old, they lose their firmness. Spoiled beans become moist and limp.

Excess moisture in beans makes them spoiled. It would be best if you did not eat soft beans with spots on them as they are harmful and can cause health problems.

Identification through the Colour of beans:

There are so many varieties of beans in markets today. The Colour of beans varies according to their type. But we can easily detect spoiled and fresh beans by just looking at their look. Fresh beans have a charming and glowing colour, but their Colour starts getting dull as the beans get old. You will also notice dark brown spots on the beans. These spots are easy to detect, and it is a ubiquitous sign of spoiled beans. 

Discolouration occurs in spoiled beans. When beans show the Colour of dark-yellow or something like that, it means beans are getting bad. It means that we should throw them away. They are no longer edible now.

The smell of beans:

Fresh beans usually have a very light aroma. We can easily find spoiled beans just by their smell. They give off a foul and odd smell when they are spoiled. As we know, fresh beans do not give off any smell, but spoiled beans foul when and it is an easy way to tell if beans are spoiled or not. Spoiled beans have a strong smell, and we should smell the beans before cooking or eating them. 

The foul and robust smell of beans means that they are spoiled by mold or fermentation. We need to be careful about it. 

Mold in spoiled beans:

Sometimes you may notice mold in beans. This mold may be either grey or white, which represents fungal or bacterial infection. Mold in beans means that beans are infected with fungus or some bacteria. We can easily find out moldy beans by their appearance. Stale beans are deceased, and we must not consider eating them because they can cause severe bacterial infection in humans. 

Taste of spoiled beans:

Tasting spoiled beans is another method to find spoiled beans. Spoiled beans taste bad and bitter. It is an easy method to know if the beans are spoiled or not. But this is a risky method. We should not try the technique of tasting spoiled beans. We should follow the above methods to know if the beans are fresh or not. Eating spoiled beans to check if they are new or not is the riskiest method you will try. This can cause many severe health issues.

Tips to keep beans safe:

To make beans last longer, we should try different methods to keep them protected from spoilage. We should store them in cool and dry places. We must keep it in a refrigerator. We need to avoid keeping it in humid and moisturized areas as beans get moist and spoil quickly.   

If we want beans to stay longer, we need to boil them, and then we can freeze them. This is how beans can stay longer than usual. 

Canned beans are also being used if we want to use beans for more than years. But still, canned beans can also spoil; therefore, we need to use them before the expiry date.

Heath issue of using spoiled beans:

We cannot eat spoiled beans because it is hazardous. Other spoiled fruits and vegetables do not harm that much as spoiled beans do. Spoiled beans harm our health more than others. It can cause severe abdominal and intestinal problems. Nausea vomiting diarrhoea is the most common side effect, but it can also worsen because of the bacteria present in the spoiled beans. 


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.