One full teapot of water take 20 minutes to heat in BE combi-steam ovens.
We were once in north Africa and they were not supposed to fill the potable water, so we always left London completely full. However, they happily informed us when we got back to the aircraft in the morning that they had topped the water up... Gasps throughout the crew as we realised that there was no way we were drinking tea from the bev makers.
Hence, discovering 20 minutes in the oven to heat a pot of water...
