Hi finy. If you haven't got back to this question to look at all the replies, try putting your ginger into a paper bag in the freezer. (I also put a rubber band around it, just to keep the paper bag closed!) It will last for years, & grates far better this way, while 'frozen' (Did your grand-daughter enjoy the Frozen movie?)
I use FRESH ginger which I grow in pots! It is a lovely sweet variety which I first grew from a small piece I purloined from a good friend's incredible tropical vegie plot in Tully ,(Nth Qld).I have been sure to always keep a piece growing, no matter how much of it I harvest and share with others who also love it! Rather than grate it, I shred it with a potato peeler.I have even soaked these shreds in honey and they are wonderful to chew when feeling Nauseous,
I don't use any kind of ginger in my cooking - it makes me vomit! Everyone else I know loves ginger and my husband keeps a bottle in the fridge so that he can add it to his portions after cooking.... so I do have some in the house!
I LOVE using Australian GINGER. I grate it for my recipes, & keep it in a small paper bag, with a rubber band around it, in the FREEZER. Itís easier to grate when itís straight from the freezer, & keeps for years like that, although of cause my mice doesnít last that long!
It has to be Australian Ginger which has a much better flavour & a fabulous texture.
The Chinese stuff is low in flavour and very, very woody & fibrous - horrible cheap stuff which can ruin your cooking.
Buderim Ginger is brilliant - try out their Ginger cordial - it is so Yum & useful in cooking too.
I use fresh ginger, the quality is much better than the bottled variety. When the ginger is at its cheapest in the shops, I purchase about 1 kg and then peel it and cut it into thin slices. After that I place it in a Tupperware container in the fridge BUT I make sure the ginger slices are covered with sherry (I've used dry or cream). The ginger has lasted over 1 year with no sign of deterioration or lack of quality. I made noodles with the last few slices last night and need to go looking for new pieces. The ginger is always purchased when it is plump and with a shine on the skin. Beautiful.
I use fresh ginger and put it in lots of food as it is supposed to have many health benefits.
My friend from India told me she uses fresh ginger from the freezer. Makes it easy to shave fine slices or grate and it doesn't go off. I tried this but accidently threw it out when taking frozen scraps from freezer on bin day. Oops.