What taste does celery have?

Celery, like some forms of lettuce, has a mild acid content that gives a tart, tangy, flavor. It is sharper than a sweet pepper , but has a flat, watery aftertaste. Celery is normally used for its crunchy texture in salads. When refrigerated, it will sometimes turn "rubbery" and tough. If not too far gone, ice water can refresh it. If you have an option, green peppers will generally keep longer without loss of crunch. (Either should be kept in a produce drawer and prevented from drying out.)