Simply clean!

After three months delivery time I finally got yesterday cleaning tablets.
DC used with my bottles by Sigg amongst Wenger - I am very satisfied.
I use my bottle only for water and rinse them out regularly. Over time, however caused slight deposits, which were removed by the Tabs thoroughly, and especially gentle
(With brushes I do not want to work because The inner coating of the bottles is scratched).
A bottle developed after the last hike from the spring water a peculiar smell. After application of the tabs again odorless.
If contamination by fermenting fruit juices and Co., the tabs are probably overwhelmed. For me are my bottles anyway too bad.