So, my new roommate who moved in is losing their mind over the roach problem we have in our apartment, which oddly hasn't ever been this bad before. But sometime after they moved in, towards the end of summer, it went from "maybe one small roach once or twice a month but its immediately killed or goes somewhere" (only VERY recently learned how much they hatch per day, so the escapee roaches having a bunch of eggs within the time frame wouldn't shock me,) to like............ roachmageddon by mid October.

We did a deep house cleaning and got into a LOT of the dark crevices or corners that had been put off before, have been spackling holes in walls left-and-right, and putting even illegal high potency roach chalk (idk how my landlord got it) and spray into areas. (My roommate forgot to do the nuke-the-place-with-Raid-and-close-all-windows-then-come-back-after-2-hrs-method, and I'm salty over that,) but all SEEMED well at first, for about a week or two.

Until the screams got louder. Somehow, even more roaches than before. My newest roomie deep cleaned like hell, and so did I, and yet here we are. (My third roomie I'll discuss later.) Cleanest the place has been in years, and somehow it's insanely bad now.

It all came to a head when I went to microwave food around my roomies, and there were FIVE to seven roaches, just CHILLING IN THERE; we all collectively shouted our WTFs.

My new roomie speculates that they come from the outlets and somehow crawled INSIDE the microwave through the outer vents, and somehow survived the intense roach chalk and other tactics used.

Any tips for this?

I'm gonna have a pretty serious talk with my 3rd roommate to see if they have anything in their bedroom that could be attracting them, since they're not very hygienic, but in the brags-about-never-dusting-ever-ever way, not in the rotting food way? Trying to figure out how to word that, since even my other roommate mentioning the low but present odds of moving out had them have a borderline breakdown over guilt.

And is the microwave salvageable, or do I have to slam dunk it into a local dumpster? I saw a tactic online of microwaving lemon juice and water for 5 minutes, but, frankly I'm worried it's a breeding ground that will never end.