Nope,24 hours does me.I found an ancient bottle from my first forays into DIY,almost 1 year old & was really excited opening it.Tasted like sweet vanilla and clogged up the wicks rapidly so was dry hit hell.These days,I kinda make on the fly.When I'm vaping mixes I made early in my DIY,I or Fraggle go mix up a few bottles.Aniseed+Lemon steeped a year is still nice,but I'm bored of fruits so busy chucking fruits with tobacco.Found out tonight that plain tobacco tastes divine but Fraggle/GF say it smells revolting,that my mates Kayfun clone has been filled with god knows what and despite boiling in water,stripping it down to nuts n bolts & boiling again,feeding it to the ultrasonic for 20 mins(water was too hot to get the bits out)the chimney & drip tip STILL smell like he's tried to vape old engine oil recycled from a diesel engine.YUCK!