Old paste/slip container

[aeboaz]

Hi Kurt and everyone, I've been on a bit of an ACS hiatus, and am now starting to get back into it.  I was looking thru my materials to see what I still had, if it's still good, etc., and I came to the little container that I used to keep a little bit of water in, and would drop in my ACS filings and unusable bits, and use as slip.  I opened it, and PEW!  It definitely had a spoiled smell to it.  If I'd found it in my fridge, I'd throw it out.  Can this be salvaged, or am I better off tossing it?  It's a small amount so it won't be a huge loss.   Thanks in advance! 
Ann
Boise, ID

[Metalman]

Well I pull the moldy part off and use the rest to make a fun project - not one of my really good ones. Seems to work fine but I don't use old, recycled materials on my best projects [ you know - just in case]