Cherries have no bitter taste. They are usually sweet. If the cherry you eat has a bitter taste, it may be because of the following reasons:
1. Immature cherry: Immature cherry will have a sour taste, but it is not bitter.
2. Cherry stone: Cherry stone contains a substance called cyanoside. If you eat cherry stone by mistake, you may feel bitter. Therefore, you must eat cherries carefully to avoid eating cherry stones by mistake.
3. Cherry varieties: Some cherry varieties may have a slightly bitter taste, but this is not common.
On the whole, if the cherries you eat have a bitter taste, it is likely that you ate immature cherries or ate cherry stones by mistake. Therefore, when eating cherries, you must choose mature cherries and carefully remove the cherry stones.