This Thai old gum (Vietnam old gum) is a ghost? The first to give you a picture, easy to buy rubber, eat rubber when you identify, avoid falling into the pit. The first thing you need to do is to get a good look at the so-called "Thai old gum" (Vietnamese old gum)!
In fact, this is a small specification of freshwater yellow gum after processing to fake into the color of the old gum to pretend to be the old gum to sell. Although in the fisherman's view, this fake means no technical content, but to deceive the rubber white is still more than enough.
So, the question is, what means did the businessman use to make the freshwater yellow gum small gum tube into this way? In fact, it is very simple, as long as three steps can be:
1, the selected small gum cylinder on the pot steamed for about 3 minutes;
2, the steamed small gum cylinder into the cold water, according to the size of the small gum cylinder to decide the time of immersion in cold water;
3, fished out of the cold water and then air-dried, air-dried can be.
Look, counterfeiting is so simple. And the price can then be raised by a minimum of 20% to sell.
Similar counterfeiting techniques of other varieties of gelatin There is also the following picture of this so-called "Thai old stone belly gelatin", the counterfeiting techniques are similar, just with different varieties of gelatin, steaming time varies, soak in cold water for varying periods of time, whether the artificial modeling and so on.