Stiftung Warentest [German Consumers' Association] marks: GOOD 2.2 (scale 1-5; 1=best)

The test was carried out on the isoTherm Perfect 1 litre vacuum bottle with automatic stopper:

Insulation GOOD

- low heat-loss, less than 2ºC per hour

Material and construction GOOD 1.8 (scale 1-5; 1=best)

- excellently manufactured and finished bottle and stopper
- ultra-light, impact-absorbing, special steel protects it from dents
- stopper locks automatically when the cup is screwed on
- welded inside container
- absolutely unbreakable

Ease of handling GOOD 1.8 (scale 1-5; 1=best)

- easy to fill and pour
- compact dimensions, thus easy to pack away
- with a weight of 490 g (1 litre) it is far and away the lightest vacuum bottle
- hygienic cleaning due to dishwasher-proof bottle and dismountable stopper

Toxic materials GOOD 1.6 (scale 1-5; 1=best)

- contains no carcinogenic, teratogenic or mutagenic substances (polycyclical aromatic hydrocarbons)
- imparts neither taste nor smell to contents

CONCLUSION

healthy - compact - robust - leak-proof - easy-care!