Drug info - Heroin Taste?

[Lehendakari]

Baboon has two different bags of H, one coming from streets of unknown purity, but baboon stimates up to 80% according to dosage experiences. The other one comes from a lab and it's purity should be up to 99%.

Both batches are odorless pure white and finely powdered looking almost the same when exposed to appropiate light, tiny brilliant crystals.

Taste, however, is a little different, the street stuff is almost tasteless with a little chemical taste, only noticeable when enough amount is tasted. The lab stuff is also very little tasting, but the taste is SWEET and I do mean sweet, just like sugar but unlike sugar it has also a chemical after taste.

I know sugar or other sugar-like agents can be used to cut drugs but baboon is pretty sure his lab stuff is as pure as stated above. So, what does H taste like to your monkey?