HI BB
Yes it freezes and keeps well.
I don't make fresh G&G, to see how long it lasts in the fridge,
but if I did, It would be as I normally do, 50/50 G&G, Salt, Vegetable Oil and NO WATER.
Water is where the bacteria can grow, (Science bit) plus the Salt is a natural preservative.
Never known this to go off
I buy fresh G&G on a regular basis, but i also buy TAJ brand, frozen Garlic, Ginger
and Minced Green Chillis. I use these 3G's in most of my curries.
These little frozen blocks are a 100% natural and so cheap and handy.
a true No brainer, so freeze away.

cheers Chewy