I suspect that if you put uncooked rice in a compost bin or a worm bin, it will start to grow into rice seedlings. I know that happens to avocado seeds that I put in the worm bin and also leftover birdseed that I throw away.

I'd suggest the outdoor compost, and if you don't wanna actually cook it, at least dump it in a pot of boiling water and let it sit awhile to soften up the grains

Bill

I wouldnt use it in the worm bin it will take forever to do anything. in the past I have tossed bags of rice in the compost bin and although usually I dont have problems with things getting in there, it became a magnet for cockroaches each time. When I went to turn the compost the rice was just full of them, they werent in any other part of the compost just the area with the rice. I didnt want to cook it up either just to dispose of it, but in future when I have one of these, I'll be digging a hole and burying the rice as deep as I can and keeping it out of the compost bin aswell.

TG

Thanx all, outdoor compost it is.

Only brown rice could grow, not white. I'd mix it into your bins as is, or you could soak first.