Which is safer to drink water with?

In the case of the same standard, the use of glasses, ceramic cups, enamel cups, will be greater than the safety factor of plastic cups and disposable paper cups. In particular, plastic cups are more suitable for drinking room temperature water, stainless steel cups and enamel cups are not suitable for drinking coffee, orange juice and other acidic drinks.

Plastic cups, glasses, ceramic cups, disposable paper cups, enamel cups, a variety of water cups we may not be unfamiliar, but what is safe? Let's take a look at their advantages and disadvantages, and what to pay attention to when buying and using!

 

 

Ceramic mug

 

Advantages:

Safe and healthy: ceramic cup is a very safe and healthy cup, and you do not have to worry about ingesting harmful metals like metal cups for a long time, and you do not have to worry about hot water like plastic cups that may precipitate harmful substances.

Low price: Ordinary ceramic cups are very common and do not belong to the luxury. Most of the ceramic cups usually used are relatively affordable, and they are affordable products for the public to consume.

Not easy to heat: ceramic cups transfer heat is relatively slow, and now most ceramic cups are designed with a handle, not easy to burn hands. Some plastic and other materials cup, pour hot water immediately very hot, and ceramic material is relatively high temperature resistance, which is also a major advantage of ceramic cup drinking water.

Easy to clean: Porcelain is easy to clean, most of the time just need to wash with water to clean.

The product is environmentally friendly and pollution-free: the ceramic cup has less harmful gases and substances brought by the plastic cup than the plastic cup, and has good corrosion resistance.

 

Cons:

Fragile and brittle.

 

Note:

Select qualified products produced by regular manufacturers;

The ceramic cup with no pattern near the inner wall and the mouth is preferred;

When the surface of the ceramic cup is damaged, or after cleaning, the surface is still yellow or stained, it is best not to use.

 

 

Glass cup

 

Advantages:

Safer than plastic cups in terms of organic or heavy metal residues and precipitation;

High transparency, easy to clean.

 

Cons:

Easy to break.

 

Note:

Give preference to the relatively simple transparent glasses;

If you choose a colored glass, the pattern is best away from the mouth of the cup;

For glasses that are too low in temperature, do not pour hot water immediately to prevent them from bursting.

 

 

 

 

Stainless steel cup

 

Advantages:

Strong and durable, not easy to rust, corrosion resistance.

 

Cons:

The price is slightly higher.

 

Note:

Select qualified products with QS mark produced by regular manufacturers;

304 material (Austenitic stainless steel), code "18-8" and other products with high chromium and nickel content can be preferred;

The appearance of the product should be smooth and complete, so as not to increase the amount of chromium ion precipitation due to roughness;

Try not to use stainless steel cups to hold carbonated drinks, juice and other acidic drinks;

Do not use soda, bleaching powder and other strong alkaline or strong oxidizing chemicals to wash stainless steel cups;

When the stainless steel cup appears large deformation, surface damage, coarse should be replaced in time.

 

 

Plastic cup

 

Advantages:

Changeable shape, not easy to break, light and easy to carry.,

 

Cons:

If the long-term use of plastic cups with excessive temperature water, it may be harmful to the human body;It is easy to breed bacteria when it is not cleaned properly.

 

Note:

Try to go to large shopping malls to buy well-known brands, QS logo, label information is clear and clear products;

Choose products that use food-grade plastics that meet national standards;

See the material of the cup body, cup lid, filter screen, etc., such as some plastic cup caps and filters are made with PP, and the bottle body is made with PC;

There is no obvious odor in the cup, and the mouth is not sharp and prominent;

Try to avoid the long-term use of plastic cups containing superheated water, and do not repeatedly use mineral water bottles or beverage bottles to drink water, oil and wine;

Plastic cups with small cracks should be replaced in time.

 

Trivia:

What do the numbers on the bottom of the plastic cup mean?

These numbers are used to identify plastic types, mainly to facilitate the recycling of resources, and have no necessary relationship with safety.

 

No. 1 PET (Polyethylene terephthalate)

PET is commonly found in mineral water bottles, carbonated beverage bottles, etc., this material is easy to deform when the temperature reaches 70℃, and it is generally not recommended to reuse such bottles, especially for boiling water, oil and wine.

PET is rumored to be harmful because of the plasticizer DEHP (dioctyl phthalate). Indeed, studies have found that DEHP has estrogen-like effects, liver and kidney toxicity, causing cardiovascular system damage, and even cancer risks, but there is still a lack of sufficient evidence, and PET plastic bottles do not use such plasticizers.

Therefore, as long as this plastic bottle is used normally in accordance with the regulations, there is no need to worry about ingesting DEHP. Of course, pregnant women and children are still trying to stay away from DEHP.

 

 

 

 

No. 5 PP (Polypropylene)

PP is mostly used to make baby bottles, drinking tubes, microwave utensils, etc., it is resistant to chemical corrosion, the melting point is relatively high, is the only plastic that can be put into the microwave oven.

 

 

 

 

No.7 PC(polycarbonate) and others

PC is often used in kettles, space cups, baby bottles, etc. Its rigidity can withstand high heat energy of 140 ° C, and its toughness can be maintained at -20 ° C, but high temperature disinfection (more than 100 ° C) may release bisphenol A.

Bisphenol A is a chemical that acts as a weak estrogen and may also have effects on the nervous system and behavior. In 2011, the European Union officially announced A total ban on the sale of baby bottles containing BPA, and in 2012, the FDA (US Food and Drug Administration) also said that baby bottles and children's drinking cups will ban BPA.

 

 

 

Disposable paper cup

 

Advantages:

Low price, easy to use.

 

Cons:

Non-conforming products may contain harmful substances, such as fluorescent agents, lead and arsenic in the outer wall pattern;

It is easily contaminated when stored improperly.

 

Note:

Select qualified products with QS mark produced by regular manufacturers;

Do not choose smelly, too white paper cups;

See the applicable temperature and shelf life of the paper cup before use;

Minimize the use of disposable paper cups.

 

 

All in all, no matter what kind of cup, as long as it is a qualified product produced in strict accordance with food safety standards and quality standards, it is relatively safe.

Only in the case of the same standard, the use of glasses, ceramic cups, enamel cups, etc., will be greater than the safety factor of plastic cups and disposable paper cups.