I still have an out pressed yellow BZP/TFMPP roll from my younger days, you’re totally right! I would lick that roll and then lick one of the tablets from the jar I bought, before test kits were a thing. I could tell immediately—if it was sour and horrible and burnt, it’d BZP… If not burnt and it just tastes like all your cleaning chems, it’s legit MDMA hahshs