How can I preserve the freshness of ginger by converting it from fresh to dried form?

To preserve the freshness of ginger, you can convert it from fresh to dried form by peeling and slicing the ginger, then drying it in a dehydrator or oven at a low temperature until it is completely dried. Store the dried ginger in an airtight container in a cool, dark place to maintain its freshness for a longer period of time.