What Does Plum Juice Taste Like

So, apparently everyone in town received some Christmas gifts in Die2Nite, including a Utility Belt, a Letter With no Address, and a vial of Suspicious Looking Plum Juice. Now, I do love Plum Juice dearly, so normally I'd just quaff it in one go, but a few things are stopping me.

• There is a little skull and crossbones in the icon for the Juice – It matches the one in the icon for Poison. Hmmm…
• I was warned, as was everyone else involved in the game a few days beforehand with the following: "Don't drink the Plum Juice!"

Does anyone know definitively what the Plum Juice does?

Here is some information and speculation from a current member of my town:

Apparently it does absolutely nothing,
according to the forums, making it
really only useful for cooking meals?

I think, unless it's a joke by the
developers, that it has a delayed
effect, maybe giving you an infection
in a night or two. This way they'd
trap the most people into drinking it.