I tried searching on here with little luck. Farmhousebrewingsupply has specific hop extract available. For 5ml of say Citra or El Dorado it is about $3. Has anyone used this for a late addition or even dry hop? If you look up Citra is has 1.5-3ml/100g oil concentration. So it would take between 333g(11.7oz)-160g(5.6oz) of hops to get 5ml of oil. At $2/oz, that's $10-20 worth of hop oil for $3. Seems like it could be a cheap way to get flavoring.