Moldy pillow fillings not only affect your sleep experience but can also pose health risks. Here are a few intuitive and scientific methods to identify moldy pillow fillings:
1. Observe color changes: Normal pillow fillings have a uniform color, while moldy fillings will show grayish-green, black, or brown spots or mold patches, especially concentrated at edges, seams, or areas that have been exposed to moisture for a long time.
If plant-filled pillow fillings such as cassia seeds or buckwheat hulls show localized discoloration, it may be an early sign of mold.
2. Smell the odor: Moldy pillow fillings will emit a distinct earthy, damp, or sour smell, which will persist even after changing the pillowcase.
If the odor persists after airing and drying, the mold may have penetrated deep into the fibers.
3. Check for clumps or abnormal texture: Normal fillings such as cassia seeds and synthetic fibers should have distinct granules and be fluffy and soft.
If you find that the filling is clumpy, hardened, or has powdery residue falling off, it may be due to physical deterioration caused by mold growth after being exposed to moisture.
4. Check the usage environment and storage conditions. Prolonged exposure to environments with humidity exceeding 60% (such as during the rainy season or near the bathroom), storing the pillow before it is completely dry, or sleeping with wet hair will significantly increase the risk of mold growth.
Pillow cores that have been used for an extended period (more than 2 years) and have not been regularly aired out are more likely to harbor mold spores.