How to distinguish true and false donkey-hide gelatin?

As a traditional tonic, donkey-hide gelatin is mixed with genuine and fake products on the market. Consumers need to make a comprehensive judgment based on appearance, smell, texture, solubility and brand channels. Real donkey-hide gelatin has a uniform color, a smooth cross-section, a light gummy aroma, and is easy to soften when exposed to heat; fake donkey-hide gelatin may have uneven color, a fishy smell, or the smell of chemical additives. In addition, you need to look for the regular manufacturer and product batch number when purchasing to avoid low-price traps. This article will provide a step-by-step detailed analysis of how to identify genuine and fake donkey-hide gelatin, and provide practical purchasing advice.

1. Observe the appearance and color

Real donkey-hide gelatin is usually tan or dark brown in color, with a smooth and flat surface. When observed through light, the edges are translucent and the cross-section is smooth without bubbles. Fake donkey hide gelatin may be darker or lighter in color, rough in surface, or even have obvious impurities or cracks. For example, the products of well-known brands such as Dong'e Ejiao and Fubai Ejiao have unified appearance standards, while inferior products have large differences in appearance due to insufficient workmanship. When purchasing, you can compare official pictures or physical samples to avoid being confused by imitations.

2. Smell and taste

Real donkey-hide gelatin has a faint glue aroma (similar to the smell of soybean oil), and the aroma becomes more obvious after heating; fake donkey-hide gelatin may have a fishy, rancid or pungent chemical smell. In addition, the texture of real donkey-hide gelatin is brittle and hard, easy to break when struck, and the cross-section of the fragments is bright; fake donkey-hide gelatin may have stronger toughness due to the addition of gelatin or leather powder. A small amount of real donkey-hide gelatin will gradually soften and taste slightly sweet when put into the mouth; fake products may be bitter or sticky to the teeth. It is recommended to ask for a sample test before purchasing.

3. Testing solubility and fire test method

Real donkey-hide gelatin will dissolve slowly when heated in water, and the solution will be light brown with no precipitation; fake donkey-hide gelatin may dissolve quickly or produce floc. The fire test method can also be used: when genuine donkey-hide gelatin burns, there will be white smoke and a smell of burnt bones, and the ashes will be gray-white; when fakes burn, they may emit black smoke and emit a plastic smell. In addition, regular donkey-hide gelatin packaging will have a clear "National Drug Approval" or "Health Food" logo, and the authenticity of the batch number can be checked through the official website.

4. Choose formal channels and brands

The following is mainstream donkey-hide gelatin brand and product information for reference:

Summary:To identify the authenticity of donkey-hide gelatin, you need to combine the four steps of seeing, smelling, tasting and testing. Give priority to big brands and ask for quality inspection reports. Avoid buying products whose prices are much lower than the market price, and be wary of inferior products that use horsehide or pigskin as donkey skin glue. Traditional donkey-hide gelatin needs to be taken for a long time to be effective. If you find that the effect is "significant" in the short term, you need to be wary of illegally added ingredients.

Quote sources:
1. "Chinese Pharmacopoeia" 2020 Edition (Quality Standards for Donkey-hide Jiao)
2. Dong’e Ejiao official website (product anti-counterfeiting inquiry instructions)
3. Public lecture by Chinese medicine expert Zhang Boli (Ejiao identification skills)
4. State Food and Drug Administration (Health Food Approval Database)