Buckwheat pillows are also antimicrobial and hypoallergenic. The hard nature of buckwheat hulls does not entice critters as a food source. Critters such as dust mites, like soft chewable materials.
This type of pillow also undergoes a thorough multistep cleaning process, to rid the hulls of any dust and grain particles that might remain after harvest.
The hulls don’t retain moisture which keeps your pillow free of mold and mildew.
However, there are some claims online that buckwheat pillows attract bugs and the dust from the pillows aggravates asthma. This can only happen with a poor quality buckwheat pillow.
Properly cleaned buckwheat pillows don’t have any nutritional value for bugs. Some manufacturers go to the extent of air cleaning the hulls several times without the use of fumigants to ensure they are as safe as possible.
Of course, with time the buckwheat hulls will age and the constant rubbing action against one another will produce dust. But with a strong outer cover, the contents of the pillow are well sealed. At this point, it’s also advisable to remove the old hulls, wash the cover, and replace it with new hulls.