The Alfi Thermoskanne Juwel is a 1000 ml vacuum-insulated flask crafted from premium stainless steel. Its polished jet black finish delivers a sleek, modern aesthetic that complements any setting — from the office to the campsite.
1000 ml capacity keeps beverages hot or cold for extended periods
Stainless steel construction ensures durability and long-term reliability
Jet black polished exterior resists scratches and fingerprints
Compact 1.27 kg weight fits easily into bags, cup holders, and desk spaces
Das zeichnet die Alfi Thermoskanne Juwel aus
The combination of a polished jet black finish with a 1-litre capacity makes this flask a standout piece in Alfi's product line. The stainless steel vacuum insulation maintains temperature far longer than standard single-wall flasks, while the refined exterior transitions seamlessly between professional and outdoor environments.
Ideal für...
Professionals who want a reliable beverage container at their desk or in meeting rooms, and outdoor enthusiasts who need a durable, large-capacity flask for hiking, camping, and travel. The 1000 ml size is particularly well-suited for full-day use without frequent refills.
Anwendung von Alfi Thermoskanne Juwel
Fill with hot or cold beverages up to the 1000 ml maximum capacity
Seal the lid securely to maintain temperature and prevent leaks
Carry in a bag, car cup holder, or place on a desk or outdoor table
Clean after each use to preserve the polished finish and hygiene
Alfi ist ein Schweizer Hersteller von Trinkbehältern und Thermoskannen mit Fokus auf langlebige Edelstahl-Produkte. Die Juwel-Serie richtet sich an Büro- und Outdoor-Nutzer, die Wert auf ein schlichtes Design und zuverlässige Isolierleistung legen.
According to the manufacturer, the vacuum insulation keeps beverages hot for up to 12 hours and cold for up to 24 hours.
The manufacturer recommends cleaning the flask by hand with warm water and a mild detergent. After cleaning, the flask should be left to dry with the cap removed.
No, vacuum flasks are generally not suitable for carbonated beverages, as pressure can build up inside the flask.
The flask is closed with a screw cap with a sealing ring. When the cap is closed properly, the flask is suitable for transport.
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