In the market today, there are many kinds of mugs and glasses that you can choose freely.
Porcelain cups, plastic cups, paper cups, stainless steel cups … are very eye-catching. However, if you dig deeper, you will find that each cup has different physical and chemical properties in its makeup. If choosing the wrong cup, choosing the wrong cup is bad for your health, drinking water with good sense becomes the equivalent of drinking poison.
The secret to each type of cup and the type of safe and healthy cup
1. Stainless steel cup: health safety index 3/5
Stainless steel mug is an alloy product, if improperly used, it releases heavy metals into the composition of the mug and endangers health. In daily use, there is no problem to use a stainless steel cup to keep normal water.
However, if you use this mug to store acidic drinks like juice, coffee, carbonated drinks … heavy metals can easily be precipitated.
In addition, when cleaning stainless steel cups, you should not use strong oxidized soda, bleach powder … because these substances easily react chemically with stainless steel.
Therefore, using a stainless steel cup for plain water is not a problem, but acidic drinks should not be.
2. Porcelain cup: health safety index 5/5 and 1/5
There are two popular types of porcelain mugs on the market today: colorless ceramic mugs and colored ceramic mugs.
Colorless enamelled ceramic mug: Health security index 5/5
A painted ceramic mug without colored enamel is the best choice for you. Not only is it made of safe material, which can withstand high temperature, but also has relatively good insulating effect.
Colored enameled porcelain cups: Health security index 1/5
Ceramic mugs with a variety of beautiful colors and cute patterns always make us fascinated. However, it is best not to use it. The colorful designs on the goblet and the colored enamel is a paint that can have hidden dangers.
Especially when enamels or colorful patterns are added to the mouth of the cup. When the mug is filled with boiling water or very acidic and alkaline drinks, the toxic heavy metal elements such as lead in these pigments easily dissolve in the liquid. People who drink this liquid will harm their body.
Therefore, to use the best ceramic mug, choose a colorless ceramic mug.
3. Glass cup: health safety index 5/5
Of all the materials, glass is the healthiest.
4. Plastic cup: food safety index of 3/5
Plastic cups are also very popular these days. When choosing a plastic cup, be sure to choose a standard plastic cup. Note the number inside the triangle consisting of the arrows below the bottom of the cup. Not all plastic cups are suitable for potable water.
Number 1: PET plastic – Heat resistant up to 65 degrees C, cold resistant to minus 20 degrees C.
Number 2: HDPE plastic – Must not be reused.
Number 3: PVC – Better not to buy.
Number 4: LDPE plastic – Heat resistance is not good.
No.5: PP plastic – Box for microwave and keep cool, withstand high temperatures of 120 degrees C.
Number 6: PS resin – Resistant to heat and cold, but cannot be placed in the microwave.
N ° 7: PC plastic – Others: kettle, water goblet, gourd …
5. Yeast cup: food safety index 5/5
The enamel cup is made by frosting at a temperature of several thousand degrees Celsius, it does not contain harmful substances like lead, but it can dissolve in an acidic environment.
Therefore, it is safer to use a yeast mug than most other mugs, but it cannot contain acidic drinks for a long time!
6. Disposable paper cups: food safety index 1/5
The enamel cup is made by frosting at a temperature of several thousand degrees Celsius, it does not contain harmful substances like lead, but it can dissolve in an acidic environment.
Therefore, it is safer to use a cup of yeast than most other cups, but it cannot contain acidic drinks for a long time!
6. Disposable paper cups: food safety index 1/5
