There are three ways to determine whether a hard-boiled egg is fresh. First, according to the size of the air chamber, generally speaking, the smaller the air chamber, the fresher. Conversely, the larger the air chamber, the less fresh it is. Second, according to the color and smell, open the eggshell, if it turns black and stinks, it proves that the eggs have deteriorated and spoiled; third, according to the taste judgment, you can taste a little, if the taste is not right, spit it out immediately. There are many tricks to cook eggs. For example, you can't boil eggs in boiling water. Boiling water will make the eggs roll around in the pot, which can easily break the shell and even expose the protein. Also, you should not boil eggs for too long, as it will affect the texture of the eggs. Finally, it is recommended that you store your eggs in the refrigerator for a few days before boiling them, so that the pH will rise slightly, the bond between the proteins and the inner shell will become slightly looser, and it will be easier to peel the shells off after boiling. Half-boiled eggs are a regular food for many people. However, as the weather gets warmer, hard-boiled eggs can easily go bad. If you accidentally eat them, you can have a lot of adverse reactions. So what do hard-boiled eggs look like when they go bad? What should people do if they eat spoiled eggs? Next, Benshaw will take you through these questions. The appearance of hard-boiled eggs goes bad. What should we do if we eat spoiled eggs?1. The appearance of spoiled hard-boiled eggs. The appearance of hard-boiled eggs will not change significantly when they go bad, but the skin will be obvious when it cracks. Sometimes they smell pungent and sometimes they feel sticky. When you eat them, you will also feel some off-flavors. If these situations occur, it is recommended that you stop eating them. Also, the surface of the boiled eggs is covered with flies, which is also a clear sign that they are spoiled. Make sure there is no spoilage before you eat them.2. What should I do if I eat spoiled eggs? People who eat spoiled eggs will have a variety of adverse reactions, the most obvious manifestation is abdominal pain, diarrhea. At this time, you can drink more water, so that spoiled eggs into the body of bacteria quickly discharged, you can also take the vomiting treatment, eat into the spoiled eggs spit out, can also reduce the adverse symptoms. If the symptoms are particularly serious after eating spoiled eggs, you need to take medication under a doctor's supervision.3. How to prevent hard boiled eggs from spoiling? In order to minimize the chances of people consuming spoiled eggs, it is recommended that you store hard-boiled eggs promptly after cooking to prevent them from spoiling. The best way to preserve them is to keep them in the refrigerator for five to seven days. You can also put some boiled tea broth in soy sauce and cooking salt, and then put the boiled eggs in it to marinate, which will also keep the boiled eggs from spoiling for five to six days.