For yrs. before I surfed the forums I used Brasso to clean with in the tumbler ,but here`s what I did , I would treat the media & leave the top off to let the media & Brasso mix really well (30 min.) or so .Then add the brass & put the lid on .
Probably the ammonia evaperated during the 30 min mix cycle because I never smelt any ammonia , but then again I did`nt try either !
I noticed no shortened case life or catastrophic failures , after who knows how many loadings they split , just as they do now !!
But back to today , as prices & demands of brass keeps going up we need to care for our brass as much as possible !!
1 . Now I use no additives to my media, but a used dryer sheet for dust.
2. When I trimm i deburr with 000wool instead of chamfer the mouths.
3. Use absolutely no more flair or crimp than neccasary.
4. Clean & prep brass as soon as possible as not to leave it "dirty".
5. More consideration when storing prepped brass.NO styrofoam on yellow brass!!
As of lately I`ve turned to annealing some older brass I have ,giving them a new lease on servicability !