Theres tons of H that is beige/off white in my area, also different shades of brown ECP, and Tar.. A lot of times the white shit, "china white" isn't really china white heroin, its just ECP mixed with fent.. I have seen it before.. OP you might have gotten meth mixed with fent.. since it is a popular cut these days for not only H, but now I am hearing of it being mixed with coke too.. don't see why they wouldn't cut meth with it as well.. Plus I have no idea why anyone would cut meth with heroin.. that would probably make the dealer lose money, mixing one expensive drug with another.. I have no idea why anyone would bother. Its very possible it was fent or maybe some other kind of opioid like oxy, OC does taste a bit like H when smoked I used to do it all the time, I have smoked morphine once without knowing it was morphine, I thought it was an OC and my friend had already put it on foil and smoked part of it, so I thinking it was oxy smoked it with her.. it was so obvious it wasn't oxy, you cant miss that taste/smell, its very unique, this tasted weird.. I knew right away it wasn't oxy, and then she showed me one of the pils that was untouched, I then knew for sure it was MScontin not OC. apparently she got high, I didn't feel shit.. morphine sucks smoked... In short.. there is a number of opioid pharms that when crushed up look and taste similar to H when smoked.. it could have been anything, but again I don't know why a dealer would want to put heroin in with their meth, other than maybe to get them physically addicted.