However, these effects are limited to the umeboshi made according to the traditional method, so they can't be expected to be produced by reduced-sodium umeboshi (chomi-umeboshi), which may even go bad when it's first included in a box lunch.
なお、この効能は伝統的な製法の梅干に限られ、減塩の梅干（調味梅干）ではこの効能は期待できず、弁当に入れると調味梅干が先に腐る場合すらある。