Hi Stacy,
Thank you for your enquiry — we receive many questions about how to recycle mixed-material items like these!
Not all envelopes are created equal. If your envelope is made with both paper and plastic layers that cannot be easily separated, it cannot be recycled through most household recycling systems. These envelopes typically end up in the paper and cardboard stream, where the plastic layer becomes a contaminant.
Please dispose of this type of envelope in your general waste bin.
Thank you for your recycling enquiry. Every question helps us build a stronger platform for providing better recycling solutions across Australia.