How do you find out if this is hash or black tar heroin?

To determine whether a substance is hash or black tar heroin, you can examine its appearance and texture. Hash typically appears as a solid, brittle block or crumbly material, often dark brown or black, while black tar heroin is a sticky, tar-like substance that can range from dark brown to black. Additionally, you can conduct a small test: dissolve a small amount in water; hash will generally float or form a residue, while black tar heroin will dissolve more completely. However, for safety and legal reasons, it’s best to avoid handling or testing unknown substances and to seek professional help if needed.