Is there a fake Vietnamese coffee G7?

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Is there a fake Vietnamese coffee G7?

The date code on the authentic package is dotted line, which means a large plastic bag, not a 16-gram small bag, and there is a piece of Vietnamese paper in the large plastic bag. Zhongyuan Company of Vietnam, which produces G7 coffee, is one of the largest coffee companies in Vietnam, and its products are exported to several countries. All kinds of products, regular manufacturers use advanced inkjet printer, date code handwriting is beautiful, is a dotted line. Fake G7 is not like this, it is solid line, some are still relatively thick, ugly lines. No matter how many crowns, as long as the packaging does not meet the above two, his G7 coffee is a parallel import.

How to distinguish

The main results are as follows: (1) the coffee is brown powder by sensory examination, and the coffee has a special aroma due to Maillard reaction during roasting, while counterfeit coffee has no or little such specific aroma.

(2) density inspection put the coffee powder to be tested in the test tube, add saturated sodium oxide solution, and shake. The aqueous solution of real coffee should be light amber, and all or almost all of the powder floats, on the contrary, if most of the powder settles at the bottom of the tube, and the aqueous solution is dark yellowish brown, it is a substitute for chicory, roasted grains and other substitutes.

(3) according to the qualitative test of chicory root powder, take about 10 grams of coffee sample to be tested, boil with 25ml water for 5 minutes, add excessive alkali or lead acetate solid, shake for about half a minute, stand still, wait for clarification and observe. If the upper aqueous solution is clear and colorless, it is pure coffee, and if it produces color, it is proved to be mixed with chicory root powder.