用错水杯等于喝毒！玻璃杯、不锈钢杯、塑料杯，哪种杯子最安全？Using the wrong cup of water is equivalent to drinking poison! Which type of cup is the safest, glass cup, stainless steel cup, or plastic cup?

喝水，是仅次于吃饭的人生第二件大事啦，而喝水的杯子则直接关系到这件人生大事你做的对不对！要是用错杯子了，那就等于喝慢性毒药！

今天我们就来对各种杯子一 一揭秘！

1、不锈钢杯    

不锈钢杯属于合金制品，使用不当会使其中所含的重金属物质释放出来，危害健康。在日常使用中，用不锈钢杯盛普通水倒问题不大，但不要装酸性饮品，如果汁、咖啡、碳酸饮料等，因为容易析出重金属物质，这样即使再用来喝普通的水也不安全了。

清洗不锈钢杯时，切勿使用强氧化性的苏打、漂白粉等，这些物质也容易与不锈钢起化学反应。

不锈钢杯总结：盛普通水问题不大，但不要装酸性饮料

健康指数：★★★☆☆

2、陶瓷杯    

陶瓷杯分为两种。

第一种：无彩釉涂染的、内壁无色：  

健康指数：★★★★☆

无彩釉涂染的陶瓷杯，尤其是内壁要无色，也是喝水的*。不仅材质安全，能耐高温，还有相对较好的保温效果，喝热水或喝茶都是不错的选择。

第二种：五颜六色的：  

健康指数：★☆☆☆☆

你的水杯上有漂亮的颜色、可爱的图案吗?如果是，赶快换掉吧。陶瓷杯上那些五颜六色的的图案，其实是一种颜料，可能藏着安全隐患。

尤其内壁涂有釉，当杯子盛入开水或者酸、碱性偏高的饮料时，这些颜料中的铅等有毒重金属元素就容易溶解在液体中，人们饮进带化学物质的液体，就会对人体造成危害。

陶瓷杯总结：用无彩釉涂染的！

健康指数：★★★★☆ / ★☆☆☆☆

3、玻璃杯   

在所有材质的杯子里，玻璃杯可是最健康的。玻璃杯在烧制的过程中不含有机的化学物质，当人们用玻璃杯喝水或其他饮品的时候，不必担心化学物质会被喝进肚里去。而且玻璃表面光滑，容易清洗，细菌和污垢不容易在杯壁孳生，所以人们用玻璃杯喝水是最健康、最安全的。

玻璃杯总结：喝水最安全！

健康指数：★★★★★

4、塑料杯   

塑料杯也是不受欢迎的一种。因为塑料中常添加有增塑剂，其中含有一些有毒的化学物质，用塑料杯装热水或开水的时候，有毒的化学物质就很容易稀释到水中。

并且塑料的内部微观构造有很多的孔隙，容易隐藏污物，清洗不净就会容易孳生细菌。所以，在选购塑料杯时，一定要选择符合国家标准的食用级塑料所制的水杯。

塑料杯总结：装热水容易析出有毒物质

健康指数：★★☆☆☆

【买塑料水杯认准底部的数字】  

不是所有塑料杯都适合当水杯，在选购时一定要认准是否有QS标志，同时在杯子的底部有一个小三角形的符号，这是它们的身份证。

1号PET：耐热至65℃，耐冷至-20℃。

2号HDPE：建议不要循环使用。

3号PVC：最好不要购买。

4号LDPE：耐热性不强。

5号PP：微波炉餐盒、保鲜盒，耐高温120℃。

6号PS：又耐热又抗寒，但不能放进微波炉中。

7号PC其它类：水壶、水杯、奶瓶。

5、搪瓷杯 

搪瓷杯是经过上千摄氏度的高温搪化后制成的，不含铅等有害物质，可以放心使用。

虽然搪瓷杯含有的金属物质比较稳定，但在酸性环境下有可能溶出。因此，*不要用搪瓷杯长时间盛放橙汁等酸性饮品，不然再盛普通的水也会含有金属物质。此外，搪瓷杯磕碰后表面易破损，会析出有害物质，应果断淘汰。

搪瓷杯总结：比较安全，但不要长时间盛酸性饮品

健康指数：★★★★☆

6、一次性纸杯    

一次性纸杯只是看起来卫生、方便，其实产品合格率无法判断，是否干净、卫生，用肉眼也无法辨识。

有的纸杯生产厂家为使杯子看上去更白，加入大量荧光增白剂。而就是这种荧光物质可使细胞产生变异，一旦进入人体就会成为潜在的致癌因素。而且从环保的角度来讲，还是应该尽可能少用一次性纸杯。

一次性纸杯总结：健康隐患多，而且不环保

健康指数：☆☆☆☆☆

Drinking water is the second most important thing in life after eating, and the cup of water directly affects whether you are doing this important thing right or not! If you use the wrong cup, it's like drinking chronic poison!

Today we will unveil various cups one by one!

1. Stainless steel cup

Stainless steel cups are alloy products, and improper use can release heavy metal substances contained in them, posing a health hazard. In daily use, it is not a big problem to pour ordinary water into a stainless steel cup, but do not store acidic drinks such as juice, coffee, carbonated drinks, etc., as they are prone to the precipitation of heavy metal substances, making it unsafe to drink ordinary water again.

When cleaning stainless steel cups, do not use highly oxidizing baking soda, bleach, etc., as these substances are also prone to chemical reactions with stainless steel.

Summary of Stainless Steel Cups: It's not a big problem to hold regular water, but don't put acidic drinks in them

Health index: ★★★☆☆☆

2. Ceramic cup

Ceramic cups are divided into two types.

The first type: Colorless glaze coated, with colorless inner walls:

Health index: ★★★★☆☆

Ceramic cups without colored glaze coating, especially those with colorless inner walls, are also suitable for drinking water. Not only is the material safe and able to withstand high temperatures, but it also has a relatively good insulation effect. Drinking hot water or tea is a good choice.

Second type: Colorful:

Health index: ★☆☆☆☆☆

Do you have beautiful colors and cute patterns on your water bottle? If so, replace it quickly. The colorful patterns on ceramic cups are actually a type of pigment that may pose safety hazards.

Especially when the inner wall is coated with glaze, when the cup is filled with boiling water or drinks with high acidity or alkalinity, toxic heavy metal elements such as lead in these pigments are easily dissolved in the liquid. Drinking liquids containing chemicals can cause harm to the human body.

Ceramic Cup Summary: Painted with Colorless Glaze!

Health index: ★★★★☆☆/★☆☆☆☆☆

3. Glass cup

Among all the materials of cups, glass cups are the healthiest. Glass cups do not contain organic chemicals during the firing process, so people do not have to worry about chemicals being ingested when drinking water or other beverages from glass cups. Moreover, the glass surface is smooth and easy to clean, making it less likely for bacteria and dirt to breed on the cup wall. Therefore, drinking water from a glass cup is the healthiest and safest option for people.

Glass cup summary: drinking water is the safest!

Health index: ★★★★★★

4. Plastic cup

Plastic cups are also an unpopular type. Because plasticizers are often added to plastics, which contain some toxic chemicals, when using plastic cups to hold hot or boiled water, the toxic chemicals are easily diluted into the water.

And the internal microstructure of plastic has many pores, which can easily hide dirt. If not cleaned thoroughly, it can easily breed bacteria. So, when choosing plastic cups, it is important to choose water cups made of food grade plastic that meet national standards.

Summary of Plastic Cups: Hot water can easily release toxic substances

Health index: ★★☆☆☆☆

Buy a plastic water bottle and identify the number at the bottom

Not all plastic cups are suitable as water bottles. When purchasing, be sure to check if there is a QS logo, and there is a small triangle symbol at the bottom of the cup, which is their ID card.

No.1 PET: heat-resistant to 65 ℃, cold resistant to -20 ℃.

HDPE No.2: It is recommended not to recycle.

PVC No. 3: It is best not to purchase.

LDPE No. 4: Low heat resistance.

PP No. 5: Microwave food box, fresh-keeping box, high temperature resistance of 120 ℃.

PS No. 6: It is both heat-resistant and cold resistant, but cannot be placed in a microwave oven.

PC No. 7 Other categories: Water kettle, water cup, milk bottle.

5. Enamel cup

Enamel cups are made by high-temperature enamel coating at thousands of degrees Celsius, without harmful substances such as lead, and can be used with confidence.

Although enamel cups contain relatively stable metallic substances, they may dissolve in acidic environments. Therefore, do not use enamel cups to hold acidic drinks such as orange juice for a long time, otherwise even ordinary water will contain metallic substances. In addition, enamel cups are prone to surface damage after being bumped, which can release harmful substances and should be promptly eliminated.

Enamel cup summary: relatively safe, but do not hold acidic drinks for a long time

Health index: ★★★★☆☆

6. Disposable paper cup

Disposable paper cups only look hygienic and convenient, but the product qualification rate cannot be judged. Whether they are clean and hygienic cannot be identified with the naked eye.

Some paper cup manufacturers add a large amount of fluorescent whitening agents to make the cups look whiter. And it is this fluorescent substance that can cause cell mutations, once it enters the human body, it can become a potential carcinogenic factor. Moreover, from an environmental perspective, disposable paper cups should be used as little as possible.

Summary of disposable paper cups: There are many health hazards and they are not environmentally friendly

Health index: ☆☆☆☆☆☆