The size and color of a wine glass
There are many shapes and sizes of wine glasses, but a rule of thumb is that the wine glasses should be large enough so that there is enough space to avoid the overflow of the wine when shaking the wine glass, and the aroma can also be emitted and gathered in the glass.
Although colored wine glasses or those with prominent decorations will be very beautiful, the best wine glasses should be smooth and flat, and the beauty and fineness of the wine in the wine glass can be clearly displayed through the glass wall.
A high-quality wine glass will have a cut-out mouth that is smooth to the touch and will not hinder the flow of wine out of the glass. Wine glasses with rolled or uneven rims should be avoided.