The quality is very well done, just looks classy. The tightness has me puzzled at first, the lid was not initially sealed. The fix was itself because on the cover bottom is a circle of stands out for passing water when above presses the lever, this circle clockwise slightly then it fits perfectly. At 90%
Tipping is / should not this pot likely. She's just nothing for the sports bag but that they should not. I have done the test:
Boiling water poured into the new alfi and in my old 100% sealed stainless steel travel thermos.
Just after 10hrs I measured it with a thermometer.
RESULTS:
The old stainless steel thermos is completely airtight: 52 ° C
The new alfi had 67 ° C
I am therefore very pleased with the performance.
The manufacturer's specification but promises even longer holding periods.
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Update: have now uploaded a photo;)