I would say the strongest I ever had, and it was only one jigger, was some stuff brewed in the mountains of Chile back in the 80s. It was semi sweet at first, went down real smooth then my mouth, throat, and stomach felt the slow (almost pleasurable) burn. I would say I was basically stoned in less than 10 minutes. Suffered a severe hangover for days after. I can't remember the name. It was what I would call a clear amber in color.