Is LHR not one of the last European airports where they still care about having liquids in zip bags.
I have my liquids in a EK amenity bag and leave it inside my hand carry.
I traveled the last few years via AMS, FRA and a few other European airport and nobody cared about my liquids. (i have only small liquid items which are clearly visible on the x-ray machine)
Also the other airports i use (Asian, IST, DXB, DOH etc) don't care as long the bottles don't look to big on the x-ray machine.