BEND, Ore. (AP) — A Bend-area man has been sentenced to three years in federal prison for running an illegal butane honey oil, or BHO extraction lab, on rural Alfalfa-area property, authorities said.

U.S. Attorney Billy J. Williams said Tuesday that Jacob Robe, 31, also will face three years’ supervised release after his prison term, KTVZ reported.

“BHO extraction is a highly volatile and dangerous process that has resulted in explosions injuring and killing Oregon residents,” Williams said in a news release.

According to court documents, Robe and his brother grew marijuana, manufactured BHO and distributed it in other states for significant profit.

On March 27, 2018, an Oregon State Police trooper stopped Robe for a traffic violation near Klamath Falls. The officer recognized signs of drug trafficking and eventually found over $20,000 in cash, BHO and hallucinogenic mushrooms, court documents said.

The Central Oregon Drug Enforcement Team had previously received information regarding Robe and his brothers. Detectives later served a search warrant on the brothers’ property, finding an indoor marijuana grow with hundreds of plants, a closed-loop BHO lab, 18 pounds of BHO, 200 pounds of marijuana and 13 firearms, prosecutors said.

On Jan. 29, Robe pleaded guilty to conspiracy to manufacture and distribute marijuana. He also forfeited $23,000 in U.S. currency.