Can moxa sticks be used if they have developed mold?
Dec 08, 2025
Source: Cainiu Health
Dr. Sun Lianqing
Introduction
In general, it is not recommended to use moxa sticks that have developed mold, as doing so may pose health risks. Moxa sticks are common tools used in moxibustion therapy, made from processed and dried mugwort. High-quality moxa sticks are dry and odorless, and effectively promote the warming and circulation of meridians. However, once a moxa stick becomes moldy, it can harbor fungi and their metabolic byproducts, which may be toxic.
Generally, it is not recommended to use moxa sticks that have developed mold, as they may pose health risks. The detailed analysis is as follows:
Moxa sticks are common tools used in moxibustion therapy, made from processed and dried mugwort. High-quality moxa sticks are dry and odorless, effectively promoting the smooth flow of meridians through warmth. However, once a moxa stick becomes moldy, it can harbor fungi and their metabolic byproducts, which are toxic. When burned, the smoke may contain mold spores that, when inhaled, could irritate the respiratory tract and cause discomfort such as coughing or chest tightness. Additionally, mold degrades the active components of the moxa stick, significantly reducing its therapeutic effectiveness and failing to achieve the desired results. Molding typically occurs due to storing moxa sticks in damp, poorly ventilated environments. Therefore, they should be stored sealed in a dry, well-ventilated place to prevent moisture exposure.
If you notice signs of mold, unusual odors, or softening in texture, discard the moxa stick immediately—do not attempt to use it to save costs. When using moxibustion products, always choose high-quality items with reliable quality assurance to ensure safety during use.
