Hashish oil is also known as Hash oil and BHO. It is the extracts taken from mature cannabis flowers. Some have said that the hash oil is as much as 90% pure but findings have shown that it is usually 40-60% purity. At regular room temperatures, hash oil is very solid. It only obtains it’s mushy texture when it is heated. Hash oil can come in the solvent form like petroleum or acetone. Hashish Oil was actually first discovered way back in the 1840s by Peter Squire, an English Chemist. ...