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  2. How to Decode the Tupperware Symbols on Every Product

    www.aol.com/decode-tupperware-symbols-every...

    The squiggly lines on your Tupperware mean that it is safe to put in the microwave. This symbol varies from an actual microwave with a dish to waves representing radiation, but either one means ...

  3. What you should know about Tupperware and plastic container ...

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    Tupperware recently received a lifeline, but the business still faces extreme challenges. Wondering how long your stash will be OK to use? Experts weigh in on safety and alternatives.

  4. Rare Tupperware Styles That Could Actually Be Worth ... - AOL

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    Founded in 1946 by Earl Tupper, Tupperware introduced the world to airtight containers made of durable, reusable plastic. Despite the company's financial woes, collectors are eyeing vintage ...

  5. Microwave oven - Wikipedia

    en.wikipedia.org/wiki/Microwave_oven

    Microwave-safe symbol. The use of unmarked plastics for microwave cooking raises the issue of plasticizers leaching into the food. [96] The plasticizers which received the most attention are bisphenol A (BPA) and phthalates, [96] [97] although it is unclear whether other plastic components present a toxicity risk. Other issues include melting ...

  6. Recycling codes - Wikipedia

    en.wikipedia.org/wiki/Recycling_codes

    Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.

  7. Resin identification code - Wikipedia

    en.wikipedia.org/wiki/Resin_identification_code

    Resin code for polyethylene terephthalate Polypropylene lid of a Tic Tac box, with a living hinge and the resin identification code, 5, under its flap. The Resin Identification Code (RIC) is a technical standard with a set of symbols appearing on plastic products that identify the plastic resin out of which the product is made. [1]