Double Walled Glass Mug ‘Hearts’

Heat resistant, double walled glass mug 0.35 lit.
Design ‘Hearts’ by Tea Logic, Bremen.
Dishwasher-safe.

All double–walled glasses have a small hole at the bottom, which is firmly closed by a synthetic resin membrane. This membrane serves to equalise the pressure of the double–walled glass layers and ensures that the glass does not break despite extreme temperature fluctuations.