With this whisky glass of Open Up Warm, take this glass in hand and you will see why it is the can't-be-missed. These glasses are made out of Kwarx, high technology and allow a tasting of all types of spirits ! They are sold in packs of 6, they are assorted glasses . Do you know that the ideal temperature for the whisky or rum, will be approximately.around 64,4°F. The Open Up collection of Chef & Sommelier includes red wine glasses, champagne flutes, sherry wine glasses, water glasses and wine carafes.