Alfi Vacuum Flask Juwel 1l Alfi Vacuum Flask Juwel 1l

The Juwel vacuum flask has been on the market since 1918. The metal handle is as much a part of the Juwel as the hinge lid with plug. The double-walled Alfi vacuum toughened glass container keeps hot things hot and cold things cold. It is made up of two parts, the inner and outer flask. Both are joined together only at the neck, to form a heat-protective cavity. The inner walls of the flasks which form the cavity are coated with reflective silver. This way, the reflectiveness optimises thermal radiation in a nutritional and efficient way. As airless space further reduces thermal transmission, the air from the outer flask is extracted in a special process. 1 litre of hot or cold liquid will remain fresh for hours in the Juwel. White-enamelled brass. Dimensions: height 24 cm, diameter 12 cm. Weight 1050 g.

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