The ripe blackbuttons are soft to the touch, like ripe plums, and if they are tipped, it is easy to pull off the tip of the fruit when you touch it. It looks somewhat translucent from the outside, even with a very heavy fruit powder, it looks more translucent, while the blackbriar that is not yet ripe, looks very dull, like a wild fruit. Black Bollinger is generally eaten soft, black Bollinger is a fruit with a high content of organic acid, hard black Bollinger, high organic acid content, eat more acid, there will also be a high level of ellagic acid, hard black Bollinger eat often sour and astringent, and soft black Bollinger, which the starch is converted to sugar, the taste is soft, sweet, buy hard black Bollinger, you can choose to put the soft sweeten and then eat.