Q&A for How to Dehydrate Mangos

You can't just leave them on the counter. If you don't have a regular dehydrator you can place the peeled mangos on a cookie sheet and keep it in the oven on very low heat, about 165 degrees, at least overnight or until they are completely dried out. Check them often and turn over if needed. Store them in an airtight container or vacuum-sealed bags.

Longer than fresh, but still not forever. I do recommend adding sugar before drying.

You could, but it would be unnecessary, as the mangoes are already preserved.

Soaking them in lemon juice prevents browning, but in practice, it makes little difference.