If you buy tea through other channels such as direct trading with tea farmers, there is a good way to identify the authenticity of tea: check whether the anti-counterfeiting origin mark is directly attached to the packaging bag, and whether the quantity mark is attached according to the quantity of tea purchased.
According to the regulations, when selling self-produced West Lake Longjing tea, tea farmers must attach anti-counterfeiting labels every 250 grams. For 500 grams, two extra stickers are needed, and so on. The number of anti-counterfeiting labels owned by tea farmers is distributed according to the area and output of their tea gardens. The anti-counterfeiting logo is changed once a year, torn off once, and cannot be removed and reused after pasting. Therefore, there will be no situation that last year's inventory was used up this year. In addition, the anti-counterfeiting logo adopts two-dimensional bar code design, which is not easy to be counterfeited.