Most plastic containers are marked (usually on the bottom) with a number within a triangle with arrows - commonly known as a recycling symbol.

The following information is a list of the different types of plastics used to make NALGENE Brand Products:

Polycarbonate (PC)
High impact resistance
Resistant to staining
Won't retain odors
Withstands sub-freezing to boiling temperatures
Dishwasher safe away from the heating element
Max temperature: 135C/275F
Min temperature: -135C/-211F

High Density Polyethylene (HDPE)
Sturdy
Translucent
Reliable
Economical
Dishwasher safe away from the heating element
Max. temperature: 120C/248F
Min. temperature: -100C/-148F
 

Low Density Polyethylene (LDPE)
Flexible
Excellent impact resistance
Microwaveable (un-assemble lid from container)
Natural or white
Dishwasher safe away from heating element
Max. temperature: 80C/176F
Min. temperature: -100C/-148F
 

Polypropylene (PP)
Sturdy
Translucent
Microwaveable (un-assemble lid from container)
Dishwasher safe away from heating element
Max. temperature: 135C/275F
Min. temperature: -40C/121F
 

NALGENE CANTENE (TM)
Transparent Multi-Layer Film
Flexible
Collapsible
Dishwasher safe (away from heating element)
Max. temperature: 104C/220F
Min. temperature: -29C/-20F