This is a function of the lid on the bottle. A vacuum-sealed lid will help liquids maintain their temperature, and it will keep beverages fresher longer. For drinkers of alkaline water, this is especially beneficial. Alkaline water has a high PH and a large amount of anti-oxidants. It is considered by most to be the healthiest substance on earth. The vacuum-sealed cap will help maintain the properties of alkaline water for quite some time.
Dual Walls:
Dual walls, or two walls means that a bottle is made up of two layers. This allows for the bottle to be used with hot and/or cold liquids, and it will not burn or freeze your hands when holding the bottle with liquid in it. Dual walled bottles will keep help liquids maintain their temperature for hours longer than a single walled bottle.
Dishwasher Safe:
This means that both the paint and the logo can withstand being washed in the dishwasher. Please note, not all dishwasher safe bottles use dishwasher safe caps. Some of the special vacuum-sealed caps are better maintained through hand washing. The caps of these bottles take only seconds to hand wash, and we recommend hand washing all caps to avoid shrinkage and to maintain a tight fit.
BPA:
BPA stands for Bisphenol A. This compound is suspected of being hazardous to humans since the 1930s, concerns about the use of bisphenol A in consumer products were regularly reported in the news media in 2008 after
18/8 Stainless Steel:
Type 304 stainless steel is a T 300 Series Stainless Steel austenitic. It has a minimum of 18% chromium and 8% nickel, combined with a maximum of 0.08% carbon. It is defined as a Chromium-Nickel austenitic alloy.
Grade 304 is the standard "18/8" stainless that you will probably see in your pans and cookery tools.
These are some of its characteristics:
- Forming and welding properties
- Corrosion/ oxidation resistance thanks to the chromium content
- Deep drawing quality
- Excellent toughness, even down to cryogenic temperatures that are defined as very low temperatures
- Low temperature properties responding well to hardening by cold working
- Ease of cleaning, ease of fabrication, beauty of appearance
