Tom Christie tells Sandra Pullman and Gerry Standing that he is a wine dealer, and offers them a glass of wine asking for a 2nd opinion. As he pours Gerry a glass, he cups the bowl as he pours it. This is generally discouraged in the wine industry, as the heat from ones hand impairs the flavour. Because of this, it is preferred to hold the glass by the stem during wine tasting, thus the liquid remains at room temperature (or chilled as required) for longer. Something Mr Christie should be aware of, working in the industry.