Slashdot Mirror


Low-Energy Laser Etching May Replace Fruit Labels

MikeChino writes "How many times have you bit into a piece of fruit only to find that you're also chomping on a sticker label? The small sticky labels have long been the bane of waste-conscious fruit and vegetable eaters, but that might all change thanks to new technology that uses a low-energy carbon dioxide laser beam to etch information directly onto produce. No more peeling those annoying labels! So far the technology is being used on a number of fruits and vegetables in New Zealand, Australia, and Pacific Rim countries, and it's currently going through the final stages of review by the FDA. Once the technology is approved in the US, researchers from the University of Florida and the USDA Agricultural Research Service hope that it will be used in Florida's massive grapefruit industry."

11 of 475 comments (clear)

  1. Lecture Fruit! by happy_place · · Score: 5, Funny

    I can't wait til they're required by law to give us all the nutritional information of every piece of fruit, down to the calorie count and the chemical breakdown. Perhaps government will put missing persons reports on them, or government mandated reminders of what it means to be a good citizen! So many useful applications!

    --
    http://www.beanleafpress.com
    1. Re:Lecture Fruit! by TheLink · · Score: 5, Informative

      > Just remember: fruit is healthy. It never hurts to eat it. Why have a label if this is true anyway?

      Because it isn't true.

      There are very many fruits in the world that are eaten by humans. They can be very different in their effects.

      Many fruits contain lots of sugar. That's not good for diabetics.
      Some fruits have very high potassium levels - this is normally good for people with high blood pressure, but bad for people with very bad kidney problems.
      There's a fruit called Ackee that can give you hypoglycemia or even kill you if not ripe or not prepared correctly. But apparently it's popular with Jamaicans.
      Grapefruit interacts with many drugs - it can make many drugs way more effective than expected.
      Starfruit (carambola) has significant amounts of oxalic acid which can give kidney patients problems.

      And there are still very many fruits which while might be commonly eaten have not had much research done on them on their health effects and nutritional values.

      Lastly, I wonder how the laser etching would look like on a whole durian or a rambutan ;).

      --
    2. Re:Lecture Fruit! by Anonymous Coward · · Score: 5, Funny

      "This Fruit Intentionally Left Blank"

  2. An answer in search for a problem? by anomnomnomymous · · Score: 5, Insightful

    "How many times have you bit into a piece of fruit only to find that you're also chomping on a sticker label?"

    Erm, never? Because I always wash my fruits (as in apples, pears) first before eating them?
    This is an answer in search of a problem: To be honest, I'd rather have a blemish-free apple, than one with carvings.

    --
    When you shoot a mime, do you use a silencer?
  3. Re:What does this do, chemically? by TimHunter · · Score: 5, Funny

    Hmmm...You're right, we can't trust the FDA. We should rely on the geniuses of the Slashdot community instead. The ones who can read the summary and immediately come up with 10 or a dozen weaknesses that the professionals who've been thinking about the problems for years have somehow overlooked.

    We should set up a vote. You know, take the top 10 highest-modded questions or something.

  4. Re:What does this do, chemically? by Atraxen · · Score: 5, Informative

    A CO2 laser has a wavelength of 10600 nm (i.e. pretty deep into the infrared). I'm not seeing any specific reactions or chemical absorbers in the literature on a quick check, nor would I expect to - a single photon of 10600 nm light contains far too little energy to break any bonds. Instead, when the photon is absorbed it makes the molecule vibrate a little, and the kinetic energy is transferred to the surrounding water (or other) molecules as heat energy. This is where the misconception stems from that IR = heat; heat results when the photon of IR light is absorbed, but a photon is a photon is a photon... Basically, the color change is going to be a burn pattern, so there's nothing to fear from it over and above any concern you'd have for cooked fruits (e.g. pie filling).

    --
    Be careful of your thoughts; they could become words at any minute...
  5. Re:Wrong problem by cwrinn · · Score: 5, Funny

    Unless of course that taste is like chicken.

    --
    Here's a cookie... *psst* it's MAGIC
  6. Re:What does this do, chemically? by moosesocks · · Score: 5, Insightful

    This might be anecdotal, but I used to work for a big pharma company. We (or at least all of the people I encountered there) were terrified of the FDA.

    The FDA were reputed to be extremely thorough, and generally uncorruptable (the FDA is a sprawling bureaucracy, which though inefficient, seems to prevent any widespread corruption).

    The media might not have picked up on it, but the American pharma industry is hurting pretty badly right now, as many of the expected "blockbuster drugs" from the past few years didn't make it through the FDA's thorough approval process, while many of the existing big-profit drugs are about to lose their patents (which, in the US only takes about 7-12 years from the date of first sale).

    In America, you can create Mickey Mouse, and profit from your invention for a period of time double that of the average human lifespan. However, if you cure cancer, you've only got about a decade to reap the profits.

    I'm not going to apologize for all of the pharmaceutical industry's actions. However, it's very important to view behavior in the context of the regulatory environment in which they must exist.

    --
    -- If you try to fail and succeed, which have you done? - Uli's moose
  7. Deep Thoughts by operagost · · Score: 5, Funny

    As I bit into the nectarine, it had a crisp juiciness that I found pleasurable... until I realized that it wasn't a nectarine at all, but a human head.

    --

    Gamingmuseum.com: Give your 3D accelerator a rest.
  8. Re:Wrong problem by Eponymous+Coward · · Score: 5, Insightful

    I'd also like to see where the fruit is from, possibly even identify the grower. There are three basic reasons:

    1. I prefer to buy stuff grown close to where I live. My grocery store will generally include the country of origin in the signage, but I really don't trust that they get that right.
    2. If there is some type of contamination problem, the CDC could more quickly track down the source and scope of the problem.
    3. I might discover that some growers produce better or worse food than others. The information could help me spend my food dollars more effectively.

    -ec

  9. Re:What does this do, chemically? by Anonymous Coward · · Score: 5, Funny

    I live in New Jersey - I couldn't care less if it causes cancer in the state of California.