Lots of recipes call for freshly grated ginger, but it's a hassle to keep it in the house since an average sized piece is much more than you'd need for any one recipe.
My solution is to keep it in the freezer. Just throw it in, it doesn't need to be wrapped, it will hold it's flavor beautifully. Then when you need fresh ginger just grab it and grate it on a hand grater. The frozen ginger grates easily and there's no need to peel it first. When you've got what you need, just throw the rest back in the freezer until next time.
Works for me.
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