How did the bugs in nuts come about

Insects in nuts are usually caused by factors such as egg contamination, improper storage, processing errors, transportation infections, and raw material carrying.

1. Egg contamination

Nuts may be fertilized by insects during their growth process, and the eggs may adhere to the surface of the fruit shell or kernel, making it difficult to detect. Some insects choose to lay their eggs in the fruit flesh before the nuts mature, and the eggs will hatch in a suitable environment after the nuts are harvested. This type of pollution often occurs in areas where orchard management is not strict or pest control measures are not used.

2. Improper storage

Nuts stored in environments with high humidity or inadequate sealing can cause hatching of insect eggs. Storage pests such as Indian corn borer and tobacco beetle that exist in the storage environment can invade packaging bags and lay eggs. When the temperature is between 25-30 degrees Celsius, the development rate of insect eggs accelerates, and humid environments are more likely to trigger pest outbreaks.

3. Processing omissions

If the screening, baking, and other processes during nut processing do not meet insecticidal standards, residual insect eggs may survive. Some low-temperature baking processes cannot completely kill the insect eggs hidden inside the nuts. Incomplete cleaning of processing equipment may also lead to cross contamination of insect eggs.

4. Transportation infection

During transportation, packaging damage or mixing with other insect infested goods can cause secondary pollution. Changes in temperature and humidity inside the container may activate dormant insect eggs. During long-distance transportation such as sea freight, pests are more likely to spread and spread in enclosed spaces.

5. Raw Material Carrying

Some nut varieties themselves have a higher probability of carrying insect eggs, such as walnuts, almonds, and other hard shelled nuts with complex internal structures, making it easy for insect eggs to hide. Wild harvested nuts pose a higher risk of carrying insect eggs than artificially cultivated ones, and inadequate pre-treatment of raw materials can leave hidden dangers.

When purchasing nuts, it is recommended to choose sealed packaging and products that have been recently produced. After opening, they should be refrigerated and stored. Before consumption, a light check or brief baking can be performed, and any signs of insect infestation should be discarded immediately. Keep the storage cabinet dry and clean, and regularly use natural insect repellents such as Sichuan pepper and cinnamon to prevent pest infestations. Nuts are rich in nutrients, but attention should be paid to storage conditions. It is recommended to purchase them in small quantities multiple times to avoid long-term storage.