Dendrobium can be distinguished by its appearance and taste.

1. Appearance identification

Because genuine dendrobium contains higher sugar content, the color will be darker and appear yellow-green. If it is waxed, it will be reflective. Dendrobium rubbed with newspaper dust can be touched out by hand, leaving dust marks on your fingers. In addition, the cross-section of Dendrobium officinale is fresh and tender green, and obvious gum can be seen, with a crystal clear appearance. High-quality fresh strips of Dendrobium officinale have very little or even no fiber, so if the fiber can be easily seen from a cross-section, it is usually a fake.

2. Taste identification

Put a piece of dendrobium around your nose and smell it. The authentic product will give off a faint grassy fragrance instead of other odors. Dendrobium officinale has a slightly sweet or bland taste and a fresh, grassy aroma. When you actually taste Dendrobium officinale, you can still feel the obvious sticky feeling of gum, and even if you chew it for a long time, there is very little residue of Dendrobium officinale. If the Dendrobium officinale you buy tastes bitter or sour when chewed, or has too little juice and too much residue, then you can conclude that its quality must be bad.

How to preserve Dendrobium officinale

How to preserve fresh Dendrobium officinale:

1. Fresh Dendrobium officinale is tender and juicy. You must pay attention to preservation after purchasing. Otherwise, it will rot or lose moisture. When preserving fresh food, you can put it in a sealable fresh-keeping bag, squeeze out all the air, seal the mouth, and put it directly into the cold storage compartment of the refrigerator. This will allow It can be stored for more than ten days without deterioration.

2. Fresh Dendrobium officinale can also be stored in a cool and ventilated natural environment. The temperature of the storage environment is preferably between ten and 20 degrees, with the highest temperature not exceeding 30 degrees and the lowest temperature not lower than 5 degrees Celsius. This way, fresh Dendrobium officinale can be preserved for 5 to 7 years without deterioration.

Preservation methods of dried Dendrobium officinale:

1. The dried Dendrobium officinale sold on the market is a dry product obtained by dehydrating and roasting fresh Dendrobium officinale. Its preservation method is relatively simple. , as long as it is stored in a dry, ventilated and cool environment, it can prevent deterioration, and during the storage process, the nutrients of Dendrobium officinale will not be lost, but it needs to be washed off with clean water in advance when eating.

2. The dried Dendrobium officinale can be stored in a sealed manner. It can be put into a sealed plastic bag and then vacuum treated. After this kind of packaging, the cold resistance and heat resistance of the Dendrobium officinale will be improved. It is significantly enhanced, and it can prevent other foods and destructive substances from corroding the iron billet, extending the shelf life of Dendrobium officinale to two to three years.