



http://www.joyofbaking.com
MY LITTLE CASTLE
一位亲戚很认真的告诉我们,其实我们每天用来装水带出门的水壶很多都是不符合标准的,它们容易让水变质,常喝会对人体有害。大多数容器底部都印有号码,这些号码是质料的分类。
我最记得他说过:-
《1号》 只可使用一次
《2、4和5号》 都可以安全每天使用
我回家检查了特地买来用的新水壶(因为害怕每天用《1号》矿泉水瓶会伤身),竟然发现新水壶是《7号》!糟糕!竟然比之前的《1号》更糟!呜……浪费钱了!后来发现到市场上的水壶,很多都是《7号》的,没看到有2、4或5号的水壶,叫我怎么办?究竟这说法正确的吗?
从网上找到以下资料,又没清楚说明可否安全每天当水壶使用。
Types Of Plastic
In the
| PET or PETE (polyethylene terephthalate) is a clear, tough polymer with exceptional gas and moisture barrier properties. PET's ability to contain carbon dioxide (carbonation) makes it ideal for use in soft drink bottles. Examples: Soft drink bottles, detergent bottles
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| HDPE (high density polyethylene) is used in milk, juice and water containers in order to take advantage of its excellent protective barrier properties. Its chemical resistance properties also make it well suited for items such as containers for household chemicals and detergents. Most five gallon food buckets are made from HDPE. Examples: Milk bottles, shopping bags
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| Vinyl (polyvinyl chloride, or PVC) provides excellent clarity, puncture resistance and cling. As a film, vinyl can breathe just the right amount, making it ideal for packaging fresh meats that require oxygen to ensure a bright red surface while maintaining an acceptable shelf life. Examples: Plastic food wrap, shrink wrap, garden hoses, shoe soles
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| LDPE (low density polyethylene) offers clarity and flexibility. It is used to make bottles that require flexibility. To take advantage of its strength and toughness in film form, it is used to produce grocery bags and garbage bags, shrink and stretch film, and coating for milk cartons. Examples: Squeeze bottles, dry cleaning bags
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| PP (polypropylene) has high tensile strength, making it ideal for use in caps and lids that have to hold tightly on to threaded openings. Because of its high melting point, polypropylene can be hot-filled with products designed to cool in bottles, including ketchup and syrup. It is also used for products that need to be incubated, such as yogurt. Many Cambo, Tupperware and Rubbermaid food storage containers are made from PP. Examples: Bottle caps, take-out food containers, drinking straws
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| PS (polystyrene), in its crystalline form, is a colorless plastic that can be clear and hard. It can also be foamed to provide exceptional insulation properties. Foamed or expanded polystyrene (EPS) is used for products such as meat trays, egg cartons and coffee cups. It is also used for packaging and protecting appliances, electronics and other sensitive products. Examples: Plastic foam, packing peanuts, coat hangers
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| Other denotes plastics made from other types of resin or from several resins mixed together. These usually cannot be recycled. |
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希望你能随意写下几句留言,
好让我知道你曾经到过这里,
也可让其他游客互相交流 ^^