Best Vacuum flask

Everyone knows them and many have an insulated bottle. In earlier times it was almost unthinkable to travel without an insulated bottle. Who doesn’t know the ROTPUNKT thermos flask with thick glass insert that keeps liquids warm for up to 12 hours? She’s available again today. It is offered again in vintage shops and today has a high-quality plastic jacket that protects against scratches and a Durotherm glass for insulation that lasts for a long time. Because if we remember exactly, the earlier insulated bottles were very sensitive to pressure and rough handling. Today’s insulated bottles are usually made of titanium, stainless steel or high-quality plastic and have a colourful design. Numerous shapes and colours ensure a trendy look, possibly also with noble leather cuffs or coloured ring inserts.

# Keep drinks warm or cold for a long time # Close tight # Be easy to handle

It is certainly worth not buying the first and cheapest insulated bottle. Everyone wants to be sure not to carry the tea around in their handbag, which is also contaminated with substances that are hazardous to their health. So if you invest a little more, you’ll also get a lot from the thermos flask, which is available in many versions: for 0.5 litres, 1.0 litres up to 2.0 litres capacity. The classic screw cap of an insulated bottle is equipped with a push button or with various click caps. These closures close automatically after the cup is screwed on. The insulating bottle manufacturer EMSA promises 100% tightness with its SAFE LOC and advertises that no drop of liquid leaves the closed bottle. The shutter opens and closes by sliding up and down. Stiftung Warentest confirmed the quality of EMSA insulated bottles in 2008. The quality differences were tested and boiling hot water was poured into various insulated bottles. After six hours the water in the best bottles was still 88 degrees warm, the worst result was only 74 degrees. The water should still have at least 78 degrees after six hours – that’s what the norm says. EMSA also promises with the Senator vacuum flask a taste of fresh coffee that lasts for hours thanks to the airtight closure and no burned fingers when pouring coffee or tea, thanks to the vacuum-insulated stainless steel piston.

The alfi insulated drinking bottles isoBottle received a new design and with the new drinking head system it presents itself as smart and handy despite its robust interior. “The “density” of Gräwe also promises no leakage of the contents of the bottle and has a stable screw cap, which is opened with half a turn. Today’s insulated bottles advertise with an impact and break-proof quality that can withstand a bike or bus trip or a kindergarten excursion and can then be cleaned in the dishwasher. Whether a thermos flask belongs to winter camping like gloves and a cap is clear. During camping, warm tea or coffee can help you to regain your strength. And those who prefer hot drinks in winter will appreciate an insulated bottle that keeps drinks cold in summer.