Sugar, not for eating, large bag (Cutteslowe, OX2)

Can be used to get rid of nematodes, feed lethargic insects, or perhaps some other uses I haven't thought of.

I'm worried a mouse may have nibbled at the bottom of a 5kg bag of white granulated sugar, so I don't feel safe eating it. It has a smell from some onions that went bad near it. I thought it might be worth seeing if anyone has a use for it before throwing it away.