system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does glass get recycled?
gpt
If the glass vessel is hard to produce (ie expensive) then it may be cleaned and re-used directly.

For everyday things like beer bottles the glass is cleaned, crushed into small bits, and fed back into the glass production line along with other scraps from earlier production runs.  It's called 'cullet'.  Minor variations (like different color, composition) are corrected for once the glass batch is fully melted.