How long can regalice be kept?
I am talking about unopened packets which have been kept in airtight containers.
Long story, but I have quite a lot of regalice in this state and wonder if there is any reason I should not use it.
Would appreciate any input.

I keep it til the use by date.

Once opened I put into a seal up bag then put into an airtight container.

Id say as long as it is still indate then use it.