Our tasting palate is greatly affected by the low pressure and humidity at 30,000 miles. It also affects our taste of wine. Sweet and salty senses are especially affected. Sour, bitter and spicy flavours much less. This may be the reason that the Yquem did not really deliver. I did not have the change to taste the Yquem though. The best red wine I had on an Emirates F flight is the Hermitage of Jaboulet 1997. Better than the Penfolds Bin 28.