I clean my own squids and I want to preserve the ink for later use. I was wondering what to do with the ink sac. Should I collect the ink in a little jar and freeze it?
Or how long will it last in the refrigerator?
So it looks like your best bet would be to extract the ink from the sacs into a suitable freezer container and freeze it.
Freezing will definitely help it to last longer as the shelf life of squid in the refrigerator is 1-2 days. You can extend this to 3-5 months in the freezer. I'd imagine the squid ink would have a similar shelf life.