How to Determine if Insect-Infested Rice Has Spoiled

　　To determine whether infested rice has spoiled, you can generally observe whether there are mold spots, smell for abnormal odors, check if the rice grains have discolored, inspect for clumping, and feel if the rice feels damp. Detailed analysis is as follows:

　　1. Mold spots: After opening the rice bag, if white, green, or black mold spots are found on the surface of the rice grains or in the seams of the rice bag, or if there is fungal growth present, it indicates the rice has been contaminated by mold and has spoiled.

　　2. Abnormal odor: Fresh rice has a natural aroma. If the infested rice emits a musty smell, rancid odor, or other pungent smells instead of its original pleasant scent, it indicates spoilage.

　　3. Discoloration of rice grains: Fresh rice has a uniform color, typically creamy white or light yellow. If the infested rice contains blackened, grayish, or significantly darkened grains, especially in large quantities, it indicates spoilage has occurred.

　　4. Clumping: Dry rice has a loose texture. If the infested rice begins to clump together, with grains sticking to each other and not easily dispersing upon touch, this is usually due to moisture absorption and mold growth, indicating spoilage.

　　5. Dampness: Grasp a handful of the infested rice. If the grains feel moist and sticky rather than dry and smooth, and lack a crisp texture when rubbed, it indicates moisture absorption and spoilage.

　　If the infested rice exhibits any of the above signs of spoilage, it should be discarded immediately and not consumed. Small amounts of unspoiled infested rice should be thoroughly washed and dried in the sun before being consumed promptly. When storing rice, ensure it is kept in a dry and well-ventilated environment to prevent insect infestation and spoilage.