Use Lemon Juice as a Natural Preservative Lemon juice is rich in ascorbic acid (vitamin C), which slows down oxidation. Toss apple slices in a tablespoon of lemon juice to keep them fresh and prevent browning.
Mix Lemon Juice with Water Dilute lemon juice in water to reduce its tartness. A mixture of 1 part lemon juice to 3 parts water works well to coat the slices evenly without overpowering their flavor.
Submerge Slices in the Solution Place the apple slices in the lemon-water solution for 3–5 minutes. This step ensures every part of the fruit is coated for maximum protection against browning.
Use an Airtight Container After treating the slices, store them in an airtight container. This minimizes air exposure, which is a major contributor to browning.
Refrigerate Immediately Cold temperatures slow down enzymatic browning. Keep the treated apple slices in the fridge to maintain their crispness and appearance.
Add a Sweetener (Optional) If you want to counteract the tanginess of lemon juice, sprinkle a little sugar or honey over the slices. This step is optional but can enhance flavor.
Alternative Solution: Try Other Acidic Juices If lemon juice isn’t available, orange, pineapple, or lime juice can work just as effectively to keep apple slices fresh and vibrant.