We'll, if the peron had access to and chose, for their future postmortem body, to undergo the disposition option of 'natural organic reduction' (also known as terramation, also known as body composting), then Ive read and heard that: any implants that contain batteries or are highly radioactive (both likely or certain to also contain metal) will be removed early on, by a professional, for safety reasons.
Other metal(, like a metal hip, or bolts,), are typically left in the body, and stay jt thought the internment ceremony, (incidentally a future customer certainly can request that a particular song or playlist be played during their internment, , and several reportedly have opted for specifically metal (genre) music to be played at this point. 🎶),
and (continuing) any metal parts then go into the pod along with the wood chips and the straw and and oxygen and everything else, they stay with the rest of the bidy the 'beehive' through the first four weeks or thereabouts, and through the peak periods of intense heat.
Then, towards the latter stages, they are eventually screened removed, using a screen. similar to that used in many other conventional composting methods. Any metal prices are returned to friends or family of they wish to keep them, or otherwise they are recycled. ♻️
The final results of the process are tested by an independent lab, for a variety of factors. One of these is heavy metal content. The results must come back, as a legislative requirement, at a heavy metal cintkentbtahtad below a specified level, before the process can finish, and the terramated remains can be returned. So far there seems to have been no issue with being below the limit.
Anyway, that seems to be the process, for those that die with metal, and who choose to have their body sent to this particular funeral services provider. (recompose). For more on that you can red more at www.recompose.life , they have a faq section.
I belive it's a similar process for other providers of n. o. r services, and(in some ways) for some alkaline hydrolisys and cremation servjices.
maybe that helps answers the question, at least in some part.