1, the fragrant part was separated from the main body of the paulownia tree by external force and fell to the ground. After sufficient alcoholization time, a "dead sink" is formed.
2. The paulownia tree is still alive after being smoked. If the fragrant part is cut off, it is "alive and heavy".
3. "Insect leakage" caused by typical ant and insect bites.
Please pay attention here.
Tung tree-a specific tree species that can bear agarwood, with loose material and no economic value without fragrance.
Injury-There are many possibilities, such as lightning strike in rainy season, animal climbing, and even partial natural death. ....
Incense-not all wind trees can make incense, nor do they have to make incense within a certain time after being subjected to external forces.
Alcoholization-the principle is basically the same as Pu 'er.
In addition, the so-called "soil subsidence" and "water subsidence"
As far as I know, there is no such concept in Vietnam, and it is collectively called "cargo death" and "cargo living" in the circle.
Aquilaria sinensis has only two seasons in a year, rainy season and dry season, and the initial fragrance may fall on the ground or water. However, with the change of seasons, rainstorm, debris flow and other uncertain factors, it is difficult to say whether it is in water or soil, and this statement has not been confirmed from the mining area.
Qinan
Qi nan is cangue nan, a different translation version.
It is a * * * living body, dead and heavy, but the oil changes qualitatively in the process of alcoholization, forming a new substance completely different from Aquilaria sinensis. In other words, if you dig a pit of Aquilaria sinensis, it may be all dead, or there may be a few strange nannies, but more often, it is only Aquilaria sinensis without strange nannies.
The most basic difference with agarwood is that
1, the surface is dry, but it is rich in oil after cutting. Almost all of it is oil.
The taste after heating is completely different.
3. The same oily nanmu is softer, while agarwood is harder.
4. After chewing, it will stick to the teeth and feel like a rice cake, while the result of chewing agarwood is wood residue.
5, the taste is spicy, but it will last longer and be stronger when it is sweet.
6. Aquilaria sinensis with the same oil content will definitely sink, while Qin' an will never sink.
Third, artificial agarwood
Decades ago, some Vietnamese planted paulownia trees and artificially exerted external forces, such as drilling, burning and intubation. In an attempt to achieve industrial mass production. Now, Taiwan Province, Hainan and Guangdong provinces are all planted in a large area, and they claim to be successful as a whole.