2 Liter Bottle Plastic Types

There are seven main types of plastics, and three of them are commonly used for 2-liter bottles. Each type has different properties; some can withstand hot liquids or pressure, others aren't easily recyclable. Learning the chemical properties of the 2-liter bottles you're using for drinks and sometimes hair products allows you to make the best decisions for your health and the environment.

Polyethylene Terephthalate (#1: PET, PETE)

• PET is the most likely plastic to be used for 2-liter soft drink bottles. Look at the bottom of the bottle for the recycling triangle surrounding the number one with the letters PET underneath it. After PET is recycled it often becomes polyester and is turned into carpets and other textiles. It's transparent and holds in water, oxygen and carbonation extremely well, so it's ideal for food containers. It's also difficult to break and will not melt easily.

High Density Polyethylene (#2: DHPE)

• HDPE is the second most common plastic for bottles because it resists most solvents and is stronger than PET. It's a stiffer material and can withstand both cold and heat, so it's often used for perishables such as milk. Because it can withstand solvents, your 2-liter container of shampoo, detergent, or household cleaning products will probably have the number two and the letters DHPE on the bottom. DHPE is also a safe plastic for food containers.

Other (#7)

• #7, or "Other," is often a combination of the main six types of plastics, or has some other material. Because it's not strictly defined, its properties vary, but when used for 2-liter bottles it often has some PET or HDPE in it, and can withstand some heat and cold and holds in oxygen and water well. Two-liter reusable water bottles are often made with this material. Some places will not recycle this product since it's not easily turned into another useable product.