VaiWai's® empty bottle weighs about 26 grams and is made of polyethylene terephtalate (the well known PET) into which is mixed two additves: one for the colour, and the other to enhance itsbiodegradability in particular environments.*
Because it is made of PET, VaiWai's® bottle is also recyclable unlike many other so called « environmentally friendly » bottles which cannot be recycled in the normal recycling stream.
Further, VaiWai's bottle and cap have been tested and have been found to biodegrade in particular conditions.*
Recycling is best though. And recyclability is not affected (the special ingredient does not alter or weaken the polymer structure in any way). We'd love to share the ingredient statements and product information from the manufacturer if you request them HERE.
* VaiWai's® bottles and caps have been tested for biodegradability under ASTM D5511-11 which is an acceptable testing method for the biodegradability of plastics in accelerated digestion conditions under AS/NZS 14021:2000. ASTM D5511-11 is the standard test method for determining anaerobic biodegradation of plastic materials under high solids anaerobic digestion conditions. Or more simply put, a rare, optimum disposal environment that mimics much faster biodegradation than most landfills around the world. In optimum disposal conditions, VaiWai'® bottles and caps will biodegrade over time. 17% in just 9 months per independent tests. (TEST RESULTS) AS/NZS 14021:2000 is the Australian and New Zealand Standard for self-declared environment claims.
* The test to ASTM D5511-11 mimics rare disposal environments and represents much faster biodegradation than most landfills around the world. In the right disposal conditions, VaiWai'® bottles will biodegrade. (refer to test results) In landfills and other more common environments the rate of biodegradation is slower. Regardless of the rate of biodegradation, we strongly recommend recycling VaiWai'® bottles.