Ed Pawlowski wrote:

> I've kept it in the fridge or up to a week. Could probably stay
> longer and be OK. The concentrate is frozen for long shelf life. It
> is processed in season and can be kept for a long time until the
> consumer needs it.
>
> As for being in a cardboard container, I've never had one leak.

Aren't those containers lined with foil and plastic film in the inside like
tetrapak? It would be crazy to put liquids in cardboard containers without
some inner lining.