Evelyn loved the way a crisp apple crunched in her hands. Every morning, she’d slice one into her oatmeal or eat it plain, enjoying its balance of tart and sweet. But one autumn afternoon, as she peeled apples for a pie, she noticed the peels turning brown.
Her grandmother’s words echoed in her mind: “Apples keep things fresh—or tell you when they don’t.” That gave Evelyn an idea.