Eating beans raw is not a good idea, although many other vegetables are fine to eat raw. Uncooked, legumes contain phasin, which has many undesirable side effects.
That’s why you shouldn’t eat beans raw
Raw fruit or vegetable sticks are considered a healthy snack. Unlike carrots or cucumbers, however, it is better not to use raw beans. It is also not advisable to try a piece of uncooked bean when preparing it.
This is because raw beans contain phasin, according to the Bavarian consumer advice center. This is a mixture of lectins, a toxic protein compound. It consists of the amino acids glutamic acid, aspartic acid, serine, alanine, tyrosine, lysine and arginine. Phasin is found in raw vegetables, especially kidney beans and other legumes such as red and white kidney beans.
Phasin is toxic to humans because it causes red blood cells to stick together. Above a certain dose, the consumption of green beans leads to vomiting, diarrhea, stomach and intestinal problems or headaches. According to the Bavarian consumer center, five to six beans are enough for children to show symptoms. With red kidney beans, adults can experience side effects after eating four to five seeds, while with kidney beans it has to be a good handful. Symptoms of poisoning usually appear two to three hours after consumption.
In the worst case, fatal poisoning is also possible. However, this requires a very large amount of beans.
You should keep this in mind when eating beans
So that you can enjoy your beans without side effects, we have a few tips for you below:
Boil the beans for at least 10 minutes. According to the Bavarian consumer advice center, the phasin is destroyed and you run no risk of poisoning yourself.
Discard the bean water after soaking, as it contains phasin. You can reuse the cooking water: Use bean water: 5 surprising ways.
Be careful with sprouting beans or legumes. Sprouting reduces the phasin content, but you should still blanch or boil them briefly. Due to the lower phasin content, blanching would also suffice here.
Keep small children away from uncooked beans. They are more prone to side effects due to their light weight and don’t yet know that uncooked beans are not good for them.