Originally Posted by bja
Not if clean them and soak in starsan.
Again, not true. I'm trying to find the thread now where a guy ended up cutting his open. It was disgusting and a starsan soak wouldn't do a damn thing for what he found.
Many bars are not a single piece of plastic, but rather 2 sandwiching a hunk of metal. The tiny gap allows crap to collect inside the stir bar. The only way to kill it is heat.
In the OP's case, all the nooks created by melting the plastic would be a nice place for the critters to hide.