The components of chestnut processing manna are similar to plant body fluids. In addition to glucose, fructose, sucrose, water minerals, they also contain volatile oil, Mannitol, resins β- Pinene γ- Pinene, limonene, 4-Anisaldehyde, monocyclic secondary alcohol, etc. The collection of nectar by bees depends on the conditions of the surrounding honey source plants, the composition content of the substances contained in the nectar. Aphids are small insects that attach to the branches leaves of plants. More than 2000 species of aphids have been discovered worldwide. In addition to gallnut aphids, they are all the enemies of crops.

Aphids absorb the juice of plants , through the action of the digestive system, absorb the protein sugar in it. They then excrete the excess sugar water sprinkle it on the branches leaves of plants. Some are "frozen like fat", while others are "as bright as snow", which is manna. The underground rhizome is spiral, crisp tender without fiber, which can be used to make Pickled vegetables. This product is native to China, distributed in various regions, cultivated in low wetlands near water. Stems, leaves, roots can all be used for medicinal purposes.