How much lemons are needed to produce pure 1 kg lemon essential oil? First of, sorry of the question is not for here, but I can't seemk to find more proper place...
My question is, how much lemons are needed to produce 1 kilogram pure essential oil, not the method with olive oil, but pure one, with only lemons?
I haven't personally tried making lemon essential oil. But according to Young Living, an MD named Jean Valnet estimated that it takes 3,000 lemons to produce one kilo of Lemon essential oil. Here are some links to the estimations (keep in mind that a kilogram is roughly 2.2 lbs):


Young Living (states 3000 makes 1 kilo)  
LemonMania (states 3000 makes 1 kilo)
Veriditas Botanicals (states 3000
makes 2 lbs (about .91 kilo))