Water Bottles Need to be Clean to be Safe: How to Clean Your Water Bottle
You are doing the right thing for the planet by filling up at home and carrying a reusable water bottle and you’ve chosen a safe, non-toxic bottle-but if it’s not kept clean then it may not be healthy.
Whether your drink bottle is a stainless steel bottle, SIGG bottle or a BPA free plastic water bottle, it is important to stop mould and other deposits forming in the bottle.
Wash your drink bottles with warm, soapy water at the end of every day and let the bottle air dry upside down with the top off every day where possible.
Should any mineral deposits or lime scale form inside, fill your clean water bottle with Distilled White Vinegar and let it soak for 24 hours. Then rinse with warm water mixed with one tablespoon of bicarbonate of soda (baking soda), rinse out and let dry. Spots inside the bottle that look like “corrosion” are most likely a mineral deposit.
Fill your bottle with filtered water wherever possible. It tastes so much better, but also because water contains different minerals in every area this may affect what happens inside your bottle.
Do not allow liquids such as fruit juice to ferment inside the bottle.
With all reusable water bottles you can also try SIGG cleaning tablets and a specially-designed SIGG bottle cleaning brush, or simply a baby bottle brush. Only ever use a soft brush on aluminium bottles with lining like SIGG so as not to damage the lining. Stainless steel water bottles like Klean Kanteen and Nathan can handle a hard brush.
While all bottles are technically dishwasher-safe, it is recommended to not put them in a dishwasher. Most dishwasher powders are caustic, so they will eat into the metal of your bottle and damage the exterior pattern. Bottle tops should also not be put in the dishwasher because extreme heat expands and deteriorates the plastic.
Never freeze metal bottles as metal can split even with only a little water inside. Water does not always expand in a predictable direction! Freezing plastic water bottles is also not advisable because it may cause the plastic to breakdown and toxins to leach. It is fine to place your bottle in the refrigerator.