If you can't use a whole ginger root, freeze the rest
If you can't tolerate the sight of a single piece of ginger on your counter, go for the freezer. This is the greatest option for those who wish to use ginger sparingly in recipes yet always have a bit on hand. One of the main reasons to start freezing ginger is that it can be stored in the freezer indefinitely. However, after six months, you may notice a loss of taste. When you're ready to grate, you'll find that the frozen root is fresher and simpler to peel.
You may also store the full, unpeeled root in the fridge for up to a month. If the root has been sliced, it should keep in the fridge for two to three weeks. Place the ginger in an airtight freezer bag to preserve it in the freezer. When ready to use, grate the frozen ginger like fresh ginger. If you wish to chop the ginger into dime-sized pieces, thaw it for around 10 minutes for simpler and less random cutting.