French Press Mug: KINTO Cafepress - Wine Red, 260ml/8.8 fl. oz Glass and has a stainless steel

and has a stainless steel filter

That will retain heat and allow for better flavor for your coffee or tea

By allowing the coarse ground coffee (which is the grind you should always use in a French press - finer grinds can seep through the filters) to infuser completely over a few minutes

Please contact GROSCHE (the world wide distributor for ZWEISSEN LINE of professional precision quality kitchen tools) directly if we can help you in any way

French Press Mug: KINTO Cafepress - Wine Red, 260ml/8.8 fl. oz Glass and has a stainless steelCafepress Mug Product Description By pressing the plunger, you can enjoy rich aromatic coffee and tea in just a few minutes! Cafepress mug can brew and strain inside itself. Just put the ground coffee or tea leaves in, pour boiled water and let it brew for a few minutes. Then, press the plunger down slowly and enjoy drinking. As the cup is double walled, it's easy to hold and stays warm longer. Features Materials include: plastic, stainless steel