Wineglass, a method of packaging wine, and a wine container

A container comprising:

• (a) a glass comprising a bottom, a sidewall extending from the bottom and terminating in a rim;
• the rim defining an opening in the glass;
• (b) wine in the glass;
• and
• (c) a film lid detachably sealed to the rim of the glass and covering the opening at a distance above a top surface of the wine;
• the lid comprising a bottom face that defines with the top surface of the wine a head space within the glass;
• the lid being substantially planar but comprising at least one deformation in a portion thereof that causes the portion to deform and to impinge into the head space when there is a reduction in pressure in the head space that causes a pressure differential between the head space and an environment outside the glass to exceed a threshold value, wherein the impingement substantially reduces a volume of the head space and limits the pressure reduction in the head space.