Rose oil the aromatics unaltered by heat. Because CO is gas at normal atmospheric pressure, it leaves no trace of itself in the final product. The equipment for CO extraction is expensive, which is reflected in the price of the essential oils obtained from the process. It takes a large amount of rose petals to distill a small amount of essential oil. Depending on extraction method and plant species, the typical yield can be approximately 1:3,000. To mitigate the cost, some dishonest dealers will dilute rose oil with geranium ("Pelargonium graveolens") or palmarosa ("Cymbopogon martinii") essential oils, both of which are rich
Mohammed el-Attar was supposed to travel to Israel. When arrested, el-Attar was in shock about the amount of information the Egyptian authorities had compiled and felt it was best to confess. Later, el-Attar claimed he confessed only after days of torture. He said he was forced to drink his own urine, was given electric shocks, and that his family in Egypt was threatened. During his trial, most of the evidence came from his confession, which he signed after spending at least three weeks incommunicado, with no consular assistance and no lawyer. Mohammed el-Attar Mohammed Essam Ghoneim el-Attar (born 1970 in Cairo, Egypt)