The production process and raw materials of mosquito-repellent incense have always been a concern. The traditional method of making mosquito coils is really troublesome and requires specific materials. First of all, the original mosquito coil appeared in the Song Dynasty, and its production raw material is mainly realgar, which is a kind of arsenic sulfide ore, which has a strong insecticidal effect. Duckweed collected during the Dragon Boat Festival is dried in the sun and mixed with realgar to make paper rolls to burn, which can effectively repel mosquitoes.

In modern times, the production methods and raw materials of mosquito coils have changed. Modern mosquito coils are usually made by mixing wood flour and starch, then adding spices and colorants. This method is simple and quick, and different spices can be added as needed to achieve the purpose of mosquito repellent and fragrance.

However, there are also methods of making mosquito coils by hand, which are more natural and pollution-free. Only wormwood powder and Xiangnan powder (the natural adhesive of nanmu bark) can be made into natural non-polluting mosquito coils. This method is troublesome, but it is more reassuring to use.

In general, the raw materials and processes of mosquito coils change with the times. From traditional realgar and duckweed, to modern wood flour, starch, spices and colorants, to handmade wormwood powder and vanilla powder, each method has its own characteristics and advantages.

Fly and mosquito coils are ingenious products designed to combat the nuisance of flies and mosquitoes. These coils are typically made of a special material that, when burned, releases substances that are repellent or harmful to these insects.

The coils are spiral-shaped, which allows for a slow and steady release of the active ingredients. As the coil burns, it creates a cloud of smoke that spreads throughout the area, creating a protective barrier against flies and mosquitoes.

One of the key benefits of fly and mosquito coils is their portability. They can be easily placed in various locations, such as rooms, patios, or camping sites. This makes them a convenient option for providing protection wherever you are.

The effectiveness of the coils depends on several factors, including the quality of the ingredients and the size of the area being treated. High-quality coils often contain powerful substances that can effectively keep flies and mosquitoes at bay for a significant period of time.

In addition to their practical use, fly and mosquito coils also offer a sense of peace of mind. Knowing that you are protected from these pesky insects allows you to relax and enjoy your time without constant annoyance or worry about being bitten.

Some fly and mosquito coils may also have a pleasant fragrance, adding to the overall experience. However, it's important to ensure proper ventilation when using the coils to avoid excessive smoke buildup.

Overall, fly and mosquito coils are a simple yet effective solution for dealing with the annoyance of flies and mosquitoes. They provide a reliable means of protection and can enhance your comfort and enjoyment in various settings.