1. The color of authentic black wolfberry after soaking in water: it turns blue when the water temperature is high in alkaline water, and turns purple when the temperature decreases. With continuous release and brewing, the color will gradually become lighter. until colorless state. In acidic water: Black wolfberry turns purple after brewing. After the anthocyanins are released, it will become lighter when water is added. If you want to accurately test the color of black wolfberry after soaking in water, you can test it again with cold water. The anthocyanins will not be affected by temperature. After many people buy black wolfberry, they find that the color is different from the description. This is because high-temperature water is used for brewing, and the difference in water quality in different places will affect the color. Therefore, when brewing, you should try to use water with a lower temperature, so as not to destroy the anthocyanins and better absorb the nutrients in black wolfberry.

2. The color of fake black wolfberry after soaking in water: When buying, you can crush the black wolfberry with your hands. When crushing, check whether the color is stained on your hands. The real black wolfberry will be slightly stained. The fake black wolfberry will leave a little brown color on the hands, and the fake black wolfberry will leave a very deep color on the hands. Secondly, smell it in time. The real black wolfberry has a light sweetness, while the fake black wolfberry has a very strong taste. Fake black wolfberry will turn brown when soaked in water, and the color of soaked water will be very dim.