Leopold Vienna Coffee Maker Double Walled Napoli 700 ml Polished Finish. Special Features... Double wall to keep hot for longer - up to 1 hour. Set the strength and brewing time of coffee yourself. High grade stainless steel. For the keen coffee lover!. Presented in a gift box. Beautifully styled and sophisticated in looks this Coffee, and Tea, maker looks stunning in any setting. Determine the strength and brewing time of coffee or tea yourself with this stylish coffee & tea maker. The coffee maker is double-walled to keep your coffee or tea warm for longer.. There are no hard rules for sizes and Teacups can of course vary plus it depends on how you pour! As a guide an average Teacup is said to contain 150ml when filled to 1.5cm of the rim. Thus Teapots sized up to 0.6L pour 3-4 cups, up to 1L 5-6 cups, up to 1.2L 7-8 cups, up to 1.5L 9-10 cups and our largest 2.0L 12-13 cups. If in doubt check the size of your Teacup first and remember with a Mug you will get half the number of Cups!