Mick O’Connell: This July 4, try these Californian wines priced from €40 to €115

I had been told that falling asleep at the dinner table was never a good look. I was in San Francisco surrounded by wine trade royalty - more masters of wine, master sommeliers and high power wine buyers than you could shake a stick at.

The table was abundant with colourful local wines, and yet I was drifting off. I had arrived earlier that afternoon, disoriented, after one of those flights where a single minute ...