1. Yes;

2. It is common for dried lemon slices to turn black, but this phenomenon generally does not cause too much harm, so people When using it, you don’t have to worry about the health problems caused by the blackening of dried lemon slices. Just remove the blackened parts, but discard the lemon slices that have become too dark.

3. But it is best not to drink it, because dried lemon slices need to be sealed and stored. Over time, they will become oxidized when exposed to space, and their effects will be reduced. Although they are not moldy or spoiled, their essence has already changed. It has changed, it is best not to use it anymore.