Just apply some of the following tips, you can easily preserve ginger

1. Refrigerator Storage (Short-Term)

1. Wrap Tightly
   • Keep the unpeeled ginger root intact (don’t cut if you don’t have to).
   • Wrap it in a paper towel or a small paper bag to absorb excess moisture.
2. Place in a Sealed Container
   • If you prefer, put the wrapped ginger in a resealable plastic bag or airtight container.
   • Squeeze out as much air as possible before sealing.
3. Where to Store
   • Put it in the crisper drawer of your refrigerator, which tends to have slightly higher humidity.

How Long It Lasts: Usually about 2–3 weeks in good condition, as long as it stays dry and cool.

2. Freezing (Longer-Term)

1. Peel (Optional) and Portion
   • You can freeze ginger with or without the peel. If you plan to grate it straight from frozen, peeling first can be easier.
   • Slice or grate ginger into portions or keep it whole if you prefer.
2. Store in Freezer-Safe Container
   • Use a resealable freezer bag or airtight container. Label it with the date.
3. Convenience Tip
   • Grate or chop the ginger before freezing, then spread it out on a parchment-lined tray. Once frozen, transfer it to a container—this way, you can easily scoop out the amount you need.

How Long It Lasts: Up to 6 months or more when stored properly in the freezer.

3. Pickling or Storing in Liquid

1. Pickling Method
   • Thinly slice your ginger and place it in a sterilized jar.
   • Add a mixture of vinegar, water, sugar, and a pinch of salt (boiled and cooled) to cover the slices.
   • Seal the jar and refrigerate.
   • This creates “pickled ginger,” which has a tangy flavor and can last for months in the fridge.
2. Storing in Alcohol (e.g., Sherry)
   • Another method is to submerge peeled ginger in a jar of dry sherry or vodka.
   • Keep refrigerated. This can preserve ginger for several weeks, and the infused liquid is also flavorful for cooking.

4. Drying Ginger

1. Slice Thinly
   • Peel and slice the ginger into thin, uniform pieces.
2. Sun-Dry or Dehydrate
   • Spread slices out on a rack or tray, ensuring good airflow.
   • Use a food dehydrator (if you have one) or place the tray in a low-temperature oven (around 135–150°F / 57–65°C) until completely dry.
3. Storage
   • Once fully dried, store in an airtight container away from moisture.
   • You can grind dried ginger into powder or leave it as slices.

How Long It Lasts: Properly dried ginger can remain usable for 6 months to a year (or more) when sealed and kept in a cool, dark place.

5. Quick Usage Tips

• Cut Off Moldy Parts: If you spot a tiny patch of mold, cut it away generously. If there’s widespread mold or an off smell, discard it.
• Check Moisture: Excessive moisture leads to spoilage or mold growth. Keep stored ginger as dry as possible—unless you’re intentionally preserving it in liquid.
• Use Frozen Ginger Directly: You can grate or slice frozen ginger without thawing—especially handy for stir-fries, soups, or marinades.