Food Sterilizer,Food Processing Machinery Parts,Fish Processing Machines

Food Sterilizer,Food Processing Machinery Parts,Fish Processing Machines

At present, there are all kinds of bottles on the market, can you distinguish the material of various bottles? Let’s understand the material characteristics and differences of PC, PP, PES, PPSU, silicone, glass and stainless steel bottles!

1. PC feeding bottle (eliminated)

PC bottles have been phased out, but we also have to learn, which helps us understand and distinguish bottles from other materials.

The full name of PC is polycarbon fiber, commonly known as space glass.

PC bottles are lightweight, unbreakable, and highly transparent, making them suitable for out-of-town and larger babies to carry by themselves.

However, PC bottles release bisphenol A (BPA) when sterilized at temperatures above 100 degrees, and the longer they are used, the more they release. Bisphenol A bottles can induce precocious puberty, disrupt human metabolic processes, have an impact on infant development, immunity, and even cause cancer.

Therefore, China banned the production of PC feeding bottles containing BPA and other infant food containers from June 1, 2011, and banned the sale of BPA-containing bottles from September 1, 2011.

2. PP bottle

PP feeding bottle is made of PP (polypropylene) material, PP material is recognized in the world as a safe material for making food containers, and does not contain the carcinogen bisphenol A. Therefore, plastic feeding bottles on the market now replace PCs with PP.


PP feeding bottle has high chemical stability, good hygienic performance, high heat resistance, microwave tableware is generally PP plastic products, non-toxic, harmless to the human body, cheap price. Below 130°C is basically safe; However, PP bottles have a short life, short long-term high temperature resistance time, and no PC material bottles are transparent and beautiful.


High-quality PP feeding bottles are not very transparent, there is a slight white feeling, which is determined by the essence of PP materials, there are no impurities and obvious moldings, flashes, etc. on the bottle body, and the scale on the bottle is also very clear and standard, and the color is more uniform. The “PP” bottle with high transparency may be made with an antifiltration agent or made of PC.


The propylene molecule in PP plastic itself has a certain smell, and the smell inside the newly bought PP bottle is the smell of PP material itself, which has no side effects on the human body and will not cause harm to the human body.

PP bottles generally have a reduced odor after 15 days in a ventilated condition.

For the first time to use PP feeding bottles, boil them with boiling water for a long time to remove the non-volatile additive components. (Cook for 15-20 minutes each time, remove ventilation to dry after cooking, repeat 3-4 times to remove odor.) ), or put bamboo and carbon deodorants in the bottle to reduce odors.

3. PES bottle

PES, also known as polyethersulfone, is a transparent amber amorphous resin with excellent heat resistance, excellent dimensional stability, and good chemical resistance. PES shows excellent reliability against sharp temperature changes, and excellent processability makes PES have a wide range of applications.

PES feeding bottle is a kind of plastic feeding bottle, which is currently one of the more popular feeding bottle materials.

PES bottle advantages:

Light and drop resistant, easy to clean, safe BPA-free; High heat resistance, heat resistance up to 180°C

PES bottle disadvantages:

Residual milk scale is not easy to clean

When buying a bottle, paying attention to the label on the bottle and packaging, and choosing a regular shopping channel to buy is the best way to ensure that you can buy a genuine PES bottle.

4. PPSU bottle

PPSU bottles are made of PPSU (polyphenylsulfone), the safest new material available, and do not contain BPA.

PPSU is a material with excellent heat resistance and is widely used in medical equipment. The heat-resistant temperature is as high as 207 degrees, and it can be repeatedly boiled at high temperature, steam disinfection, vacuum autoclaving in hospitals, heating disinfection in microwave ovens and disinfection of chemical solutions.

PPSU is a high-end feeding bottle material, some PPSU bottles, the color is brown, the texture is slightly soft.

PPSU material has excellent resistance to chemicals and alkalis, and can withstand cleaning with general chemicals and detergents without chemical changes. PPSU bottles combine the non-toxic characteristics of glass bottles and the lightness and unbreakability of plastic bottles.

PPSU is the most ideal and reassuring feeding bottle material. PPSU bottles are used more often by children in Japan and European and American countries; The bottle is lightweight, drop-resistant, and is the best in terms of safety, temperature resistance, hydrolysis resistance and impact resistance. However, the price is more expensive, and there are few varieties, so it is not easy to buy;

PPSU bottles are divided into ordinary PPSU bottles and PPSU anti-emetic bottles according to their functions. PPSU anti-emetic bottles can reduce the inhalation of air when your baby is drinking, thereby effectively reducing flatulence, hiccups and spitting up after your baby. Moms can choose for their babies according to their needs.

It is worth noting that the choice of PPSU feeding bottles is that careful imitation, PC, PA, PPSU, etc. are easy to process into bottles with the same appearance and feel as PPSU, but the material difference is 5-10 times.


Four kinds of plastic feeding bottles big PK

The plastic bottles we often talk about include PC bottles, PP bottles, PES bottles, and PPSU bottles that have been introduced above. Now, let’s compare heat resistance, corrosion resistance, transparency and cleanliness:

Heat resistance: PPSU>PES = PC> PP

Corrosion resistance: PPSU>PES>PC> PP

Transparency: PC>PES>PPSU> PP

Cleanliness: PPSU=PES> PC > PP

Next, we continue to introduce silicone bottles, glass bottles and stainless steel bottles.

5. Silicone feeding bottle

Silicone milk bottle is made of colorless, odorless, non-toxic liquid silicone (LSR), does not contain bisphenol A, will not break, silicone bottle body is soft, light and durable, easy to suck, not easy to age, heat resistant, chemical corrosion resistance, not easy to break, while moderate viscosity, easy to operate, high product transparency, safe material, easy to carry, but the price is higher.

The material of silicone has a human skin-like feeling.


A good silicone feeding bottle first of all has a good feel. When feeding your baby, your baby often holds bottles and milk in his small hands; A good touch is not only conducive to the baby’s emotional stability, but also helps the development of the baby’s emotional intelligence, which is also incomparable with other feeding bottles.


A good silicone bottle should have good elasticity, the elasticity of silicone is different from rubber: it will not be the elasticity of the hard state, the elasticity of silicone is soft and delicate. At the same time, you can try it with hot water in the bottle, and the feeling after filling the water will be more like human skin.

Silicone feeding bottles are heat-resistant than ordinary plastic bottles, and long-term disinfection will not be a problem, and disinfection in boiling water or microwave ovens will not cause deformation.

Silicone feeding bottles are economical, no need to change bottles, only need to change the pacifier for permanent use. When the baby grows up, it can change the lid and use it as a water bottle, or it can be left for the next generation. Silicone bottles do not contain environmental hormones that are harmful to babies and are not toxic. There is no need to change the bottle, just change the nipple and use it permanently.

6. Glass feeding bottle

Glass feeding bottle is made of high-grade heat-resistant glass, the material is safe and does not contain carcinogen bisphenol A, high transparency, in case of acid or alkaline substances will not release harmful substances.

Glass feeding bottle material is high borosilicate, soda-calcium and potassium-calcium glass (mainly used in food and drug packaging containers), high borosilicate glass high light transmittance, physical properties and chemical stability are better, is soda-calcium, potassium-calcium glass is unmatched.

Advantages: good safety, high glass transparency, good heat resistance, and not easy to scratch, not easy to hide dirt, easy to clean, multiple high temperature disinfection and no deterioration, suitable for newborns who need to breastfeed many times.

Disadvantages: not strong enough, fragile, so the glass bottle is suitable for feeding newborn babies, held by mom and dad to feed. But after four months, the baby is naughty, and for safety reasons, it is advisable to switch to a plastic bottle.

Generally, a good glass bottle has good transparency, and the capacity and status of the milk can be clearly seen, so that it is convenient for the mother to clearly see the capacity when making milk powder.

Mothers must pay attention to the bottle body of the bottle should not have too many patterns and colors, because the brighter the color, it means that the heavy metal content exceeds the standard. Mothers should not be greedy for cheap bottles that can potentially harm their babies.

Glass feeding bottles are mainly divided into ordinary glass feeding bottles and safety glass feeding bottles according to their functions. Ordinary glass feeding bottles are easy to hurt people after being broken, and safety glass feeding bottles because of the double-layer design, the inner layer is glass, the outer layer is high-strength material, than ordinary glass feeding bottles more impact resistance, the most important thing is that even if broken, the glass fragments are wrapped in the outer protective layer to prevent fragment damage.

7. Stainless steel feeding bottle

Stainless steel feeding bottles are feeding bottles made of stainless steel materials.


Durable, antibacterial and hygienic, easy to control temperature, easy to carry, not easy to break, safe and non-toxic, economical, green environmental protection


1. Opaque, difficult to quantify, although the scale is clear, it is not convenient to observe the dissolution, which is slightly troublesome. 2. Not light enough.

The development of feeding bottles has gradually developed from plastic feeding bottles to stainless steel feeding bottles. The chemical component “bisphenol A” contained in plastic feeding bottles may cause cancer, and in recent years, many parents have abandoned plastic feeding bottles and switched to stainless steel feeding bottles. Now the new trend of consumption of milk bottles in the United States is to use stainless steel milk bottles.

Harters, senior editor-in-chief of “American Baby”, pointed out that glass feeding bottles have the disadvantage of easy to break or break, stainless steel feeding bottles do not have these problems, not only light weight, but also when the baby grows up, the pacifier above the bottle can also be replaced, turned into a children’s kettle for continued use, more in line with the concept of environmental protection.

Now, I believe you already know the material of your baby’s bottle, and hope that you can choose the most suitable bottle for your baby and your family’s needs.