I love the flavor that fresh ginger lends a dish, but I can never use up ginger before it goes bad. I have come to a compromise. I buy fresh ginger and use it from the refrigerator for a week or two. Then I place it in a Pyrex container and store it in the freezer. It keeps in the freezer for 4 -6 months. Freezing ginger not only reduces waste, but saves money.
One benefit that I have to discovered of frozen ginger is it is easier to grate ginger when frozen. Just peel the outer skin and grate – it will produce a fine grate, without any stringiness when frozen.
A few of my favorite recipes that use grated ginger: