PET bottles are popular in the food industry due to their low price, ease of use and lightness. However, many believe that the use of plastic containers has a negative impact on human health and the environment. We discussed with the professionals of the PAKKA company (for detailed information here) how PET containers are made and how dangerous they are.
Advantages and production of PET containers
Plastic bottles (PET) are made from polymers in in the form of flakes or granules with a diameter of up to three millimeters. First, a bottle blank - a preform - is created from the granulate. Then it is heated at a temperature of about +80°C, pulled out with rods and blown on specialized equipment, repeating the shape of the matrix.
Advantages of plastic bottles
- Light weight. A one and a half liter container weighs 35-50 grams.
- Resistance to bending and stretching.
- Ability to withstand a wide range of temperatures from +60°C to -40°C.
- li>Rigidity.
- Dielectric characteristics.
- Hypoallergenic.
- Recyclable.
- Versatility. Juices, oils, sauces, carbonated and still water, and dairy products are poured into plastic bottles. devicesv automatic and semi-automatic are manufactured for bottling.
The negative impact of food plastic: facts and myths
Let's look at the most common opinions and tell you which ones are true and which ones no.
- PET is safe for humans.The material is made from terephthalic acid and ethylene glycol - these are not toxic substances. PET does not react chemically with spilled liquids. Scientists from the Fraunhofer IVV Institute in Germany did not find toxic compounds in the samples - methanol, phthalates, formaldehyde, bisphenol.
- It is important to store correctly and not ignore expiration dates.
- liquid storage conditions have been violated - for example, water bottles are constantly exposed to the sun;
- the product's shelf life has expired - because of this, hazardous substances can accumulate in the plastic components.
- The characteristics of plastic deteriorate if: If the product contained in the container is stored according to the rules, the plastic is harmless to humans.
- Burning PET is harmful: it is better to dispose of it properly.When burned, PET indeed emits hazardous elements, they have a negative impact on the environment and are carcinogenic. Plastic takes a hundred and fifty years to decompose if simply disposed of with normal household waste. So recycling is the best solution. PET bottles are 100% recyclable.
Do you use PET bottles for bottling? PAKKA has been producing bottling lines for chemical and food liquids for over twenty years. The organization produces more than thirty varieties of machines to supply turnkey enterprises - from bottle blowing to packaging. We recommend!
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