I just moved into a new apartment. I don’t believe the previous tenant kept kosher. The kitchen has a large metal sink, with a hanging metal dish rack that fits into it. Can I kasher them both by pouring boiling water over them? I looked into replacing the dish rack but can’t find another that fits like this one. I will only be using the kitchen for dairy/parve.
Yes you can. Clean the area well. Heat up water in an urn until it is boiling and then pour it over all the surfaces. this is because the areas did not absorb hea t that was more intense than iruy kli rishon.