Ive come across this nasty stuff in the states.

Two causes.

Anaroebic bacteria overgrowth on the weed (mold). Weed that has gotten wet.

or

Weed contaminated with the meth chemical, anhydrous ammonia. Same containers, purposeful contamination etc.

From what I keep hearing this is happening too often in many places in the States.

If it smells like cat piss, human piss or ammonia avoid smoking it.
Ganjasaurusrex Reviewed by Ganjasaurusrex on . Ammonia killer weed Hi I am new to this formus, take my apollogies for not introducing myself before but I have some urgent questions. I bought about 40 grams (3/2 oz roughly) of some weed that looked very nice, small, dense, sticky buds, etc... Problem is that it has strong chemical smell which I am very sure it is ammonia smell. I heard that chemical sprayed weed is very bad for your health (which is logical of course), but also that ammonia smell can mean that weed has mold and varoius bacteria on itself Rating: 5