It is a sign that reycle usually in plastic bottles, plastic drink either plain, shampoo, baby bottles and others, here I will try to explain what the symbols mean, side effects and the impact may be useful.
1. PET — Polyethylene Terephthalate
Usually, at the bottom of plastic bottles, recycling logo printed with the number 1 in the center and writing PETE or PET (polyethylene terephthalate). Used for plastic bottles clear / transparent / translucent like mineral water bottles, juice bottles, and almost any other beverage bottles. Bottle type PET / PETE is recommended ONLY USE ONCE, why? If it is too often used, especially used to keep warm let alone hot water, will result in the polymer layer on the bottle will melt and release substances carcinogenic (can cause cancer).
In making PET, using a material called antimony trioxide, which is dangerous for workers associated with the processing or recycling, as antimony trioxide enters the body through the respiratory system, which is caused by inhaling dust containing compound.
In making PET, using a material called antimony trioxide, which is dangerous for workers associated with the processing or recycling, as antimony trioxide enters the body through the respiratory system, which is caused by inhaling dust containing compound.
Contamination of these compounds over a long period will experience: skin and respiratory tract irritation. For working women, these compounds increase menstrual problems and miscarriage, even when giving birth, their children are likely to experience slow growth until the age of 12 months.
2. HDPE — High Density Polyethylene
Generally, at the bottom of plastic bottles, recycling logo printed with the number 2 in the middle, as well as the writings of HDPE (high density polyethylene) in the bottom of the triangle. Used for milk bottle white milk, tupperware, gallons of drinking water, folding chairs, and others.
HDPE is a plastic material that is safe to use because of its ability to prevent chemical reaction between the plastic packaging made from HDPE with food / drinks are packed.
HDPE has the properties of a material stronger, harder, more opaque and resistant to high temperatures. Just as PET, HDPE is also recommended only for a single use, since the release of antimony trioxide compounds continues to increase over time.
3. V — Polyvinyl Chloride

Recycling logo printed (sometimes red) with the number 3 in the middle, and writing V - V means of PVC (polyvinyl chloride), which is the most difficult type of plastic that is recycled.
Plastics can be found on the plastic wrap (cling wrap), and bottles. PVC contains DEHA can react with foods that are packed with plastic made from PVC is now in direct contact with food such as DEHA is melted at a temperature of-15oC.
The reaction that occurs between PVC plastic packaged food is potentially harmful to the kidneys, liver and body weight.
Should we look for alternatives other food packaging that does not contain softeners, such as plastics made of polyethylene or natural materials (eg banana leaf).
4. LDPE — Low Density Polyethylene

Listed recycling logo with the number 4 in the middle, as well as writing LDPE
- LDPE (low density polyethylene) is a type of brown plastic (thermoplastic / made from petroleum), used for the food, plastic packaging and bottles of soft.
The mechanical properties of LDPE plastic types are strong, somewhat translucent, flexible and somewhat greasy surface. At temperatures below 60 ° C is very resistant to chemicals, power protection against moisture quite well, but not good for the other gases such as oxygen.
- LDPE (low density polyethylene) is a type of brown plastic (thermoplastic / made from petroleum), used for the food, plastic packaging and bottles of soft.
The mechanical properties of LDPE plastic types are strong, somewhat translucent, flexible and somewhat greasy surface. At temperatures below 60 ° C is very resistant to chemicals, power protection against moisture quite well, but not good for the other gases such as oxygen.
These plastics can be recycled, either for goods that require flexibility but strong, and has good resistance to chemical reaction.
Items made from LDPE is difficult to destroy, but still good for the food because it is difficult to react chemically with foods that are packed with this material.
5. PP — Polypropylene

Listed recycling logo with the number 5 in the middle, as well as writing PP
- PP (polypropylene) is the best choice for plastic materials, especially for dealing with food and drinks as a place to store food, drink bottles and foremost drink bottles for babies.
Characteristic was the usual transparent bottles that are not clear or cloudy. Polypropylene is stronger and lighter with low vapor permeability, good resistance to fat, stable to high temperatures and quite shiny
Look for the code number 5 when buying goods made of plastic to store a variety of food and beverage packaging.
- PP (polypropylene) is the best choice for plastic materials, especially for dealing with food and drinks as a place to store food, drink bottles and foremost drink bottles for babies.
Characteristic was the usual transparent bottles that are not clear or cloudy. Polypropylene is stronger and lighter with low vapor permeability, good resistance to fat, stable to high temperatures and quite shiny
Look for the code number 5 when buying goods made of plastic to store a variety of food and beverage packaging.
6 . PS — Polystyrene
Listed recycling logo with the number 6 in the middle, and writing the PS
- PS (polystyrene) was discovered in 1839, by Eduard Simon, a pharmacist from Germany, by accident.PS commonly used as a place to eat Styrofoam, disposable drinking places, and others. Polystyrene is an aromatic polymer material that can emit styrene into food when food is in contact. In addition to the food, styrene can also be obtained from cigarette smoke, fumes and building construction materials.
This material should be avoided as dangerous to health than the brain, interfering with the female hormone estrogen which result in reproductive problems, and growth and nervous system, as well as the material is difficult to recycle. Even when recycled, these materials require a long process and a long time. This material can be identified by the code number 6, but if the code number is not listed on the packaging of plastic, this material can be recognized by burning (a last resort and should be avoided). When burned, these materials will emit yellow-orange flame, and leave soot.
- PS (polystyrene) was discovered in 1839, by Eduard Simon, a pharmacist from Germany, by accident.PS commonly used as a place to eat Styrofoam, disposable drinking places, and others. Polystyrene is an aromatic polymer material that can emit styrene into food when food is in contact. In addition to the food, styrene can also be obtained from cigarette smoke, fumes and building construction materials.
This material should be avoided as dangerous to health than the brain, interfering with the female hormone estrogen which result in reproductive problems, and growth and nervous system, as well as the material is difficult to recycle. Even when recycled, these materials require a long process and a long time. This material can be identified by the code number 6, but if the code number is not listed on the packaging of plastic, this material can be recognized by burning (a last resort and should be avoided). When burned, these materials will emit yellow-orange flame, and leave soot.