Refrigerator: 3 weeks
Freezer: 6 months
Tip: If frozen, it’s not necessary to thaw it before grating.
Store ginger in a zipped plastic bag in the crisper drawer of your fridge. Make sure you have pushed all of the air out of the bag. This can keep it fresh for weeks. Another option (although this may alter the flavour of the ginger) is to place the freshly peeled ginger in a jar and submerge in a spirit (such as vodka!) – this has been shown to keep ginger fresh for longer.