Am I right in thinking that (if you do or are trying to garden organically), you need to be careful about adding cardboard to the compost heap?
I’m sure I’ve read somewhere (might have been one of @jackwallington 's blogs) that cardboard can contain chemicals and other nasties.
I use cardboard boxes to cover my compost heaps and leaf mould pile and add brown paper bags which I use to line my compost caddy, but I don’t often add shredded cardboard to the mix because I’m not sure about the glue etc.
I’ve looked online, but I’m not sure who to trust as one source was advising adding tumble drier and vacuum lint to the heap (which are surely full of microplastics and other inorganic things!).
Any definitive information much appreciated.