So, other random objects, like scrap metal, electronics, dining ware, toys, food, textiles, yard waste, lumber, household goods, etc., should never be placed in a blue recycling cart or bin. (There may be other recycling programs that can accept some of those things, such as our recycling drop-off site.)
If there isn't a process to sort an item, or if there isn't a market that wants the material, it doesn't do any good to place that item in your recycling cart. In fact, it can actually do great harm to the recycling process. To learn about MRFs and to understand the global impact of contamination (non-recyclables in your blue bin), use the "Resources to Learn More" link on this page.
And remember, when in doubt, don't recycle, throw it out!