All stainless steel water bottle are not created equal. Before you can decide which stainless steel water bottle is best for you it's helpful and interesting to know a little bit about stainless steel...
According to Wikipedia, "... stainless steel... is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass. Stainless steel does not stain, corrode, or rust as easily as ordinary steel (it stains less, but it is not stain-proof)"
Click here to read the entire article about Stainless Steel.
Chromium passively generates an extremely thin and invisible layer of chromium oxide when exposed to oxygen which prevents further corrosion. To resist corrosion, stainless steel should have at least 13% chromium.
Nickel added to stainless steel makes it easier to form into shapes without cracking and prevents the formation of stress fractures that can be a source of corrosion.
Food Grade 304 18/8 stainless steel
is an excellent choice for water bottles. The 18/8 represents the percentage of chromium and nickel
and this is the stainless steel used in Klean Kanteens. The product is continuously tested to verify that the quality of all materials used in constructing Klean Kanteen Bottles is up to exacting specifications and that all non metallic parts are consistently made from BPA and toxin free polypropylene (pp#5).
High quality stainless steel water bottles do not require a liner like aluminum bottles. Liners can eventually scratch or chip exposing the aluminum to you food and drink. The liner itself may contain BPA or other toxins.
Stainless steel water bottles are completely non-porous and don't retain the smell of food or drink you had in it yesterday or last week. Unlike plastic water bottles stainless steel water bottles won't introduce their own funky smells or taste to the content.
Klean Kanteens are more expensive than many other no name stainless steel bottles found at your local stores checkout because of the high quality and gauge of the stainless steel they use in their bottles. And when you consider your Klean Knateen will essentially last a lifetime and the other ones last a short while and don't work well... is it more expensive? Furthermore, ask yourself...
- What kind of plastic is being used? Does it say it's BPA free? If there's a label telling you it's BPA and toxin free can you believe it? What corners are they cutting to reduce the price?
- If the bottle is painted is the paint safe? Does it contain lead or worse yet cadmium? Paint with lead and cadmium is a lot cheaper. Are they complying with the manufacturing specs they agreed to?
When you're considering stainless steel water bottles, and especially insulated bottles where you or your family will be carrying hot beverages and food which makes leaching chemicals and toxins more of a problem, it's just common sense to buy a product that's the industry leader, is thoroughly tested and proven beyond any shadow of a doubt to be absolutely safe