Dear EarthTalk: I am a retailer and have had customers ask whether the plastic bags in wine boxes are BPA free or not. What can I tell them?—Chris Tod, via e-mail

The short answer is: “It depends.” A fairly recent innovation in wine packaging, the so-called Bag-in-Box (BIB) dispenser makes use of a plastic bag with a nozzle surrounded by a corrugated cardboard box. The whole package sits easily on a shelf and usually features a built-in spout for easy pouring and resealing. The main benefit is that each box can hold about four bottles-worth of wine, and the BIB technology prevents oxidation, keeping the wine fresh for up to six weeks after the seal has been broken initially.

Besides costing less to manufacture than glass bottles, the Bag-in-Box apparatus, invented by Scholle packaging a half century ago, weighs significantly less, stacks more efficiently (meaning more wine can go with each container load) and will not shatter if dropped. As such, they are easier to transport, which keeps costs down and reduces the carbon footprint of the entire distribution process. While U.S. wine buyers traditionally have viewed wine in a box as cheap and unsavory, several American and European wineries are working to turn that view around by putting out award-winning vintages by the box. Eco-conscious yet no less discriminating wine consumers are helping to drive the growing demand for boxed wines in the U.S., which currently command about 10 percent of U.S. supermarket wine sales.

But boxed wine may have an environmental dark side: Some of the plastic bags inside the boxes contain Bisphenol-A (BPA), a synthetic chemical that has been in use for four decades to strengthen plastic food containers and other items but recently has been linked to a range of human health problems. “A growing amount of scientific research has linked BPA exposure to altered development of the brain and behavioral changes, a predisposition to prostate and breast cancer, reproductive harm, diabetes, obesity and cardiovascular disease,” reports the non-profit Natural Resources Defense Council (NRDC).

The bags are made out of #7 plastic, a catchall category typically containing mixed types of plastic (“polycarbonate”), combined for various practical reasons. As more and more research comes to light, many environmentalists and public health advocates are warning consumers to avoid storing any food or drinks in containers made out of #7 plastic, as there is likelihood that BPA could be part of the mix.

Most wineries offering boxed wines make it clear if their plastic bags do not contain BPA. For one, Scholle Packaging, inventors of the BIB system and one of the largest wine box manufacturers, uses only BPA-free #7 plastic in their bags. Perini, Campo Largo, Bota Box and many other box wines come in BPA-free packaging. The simple way to know is to read the labels when you’re wine shopping.

Also, don’t think that by avoiding boxed wine you are necessarily avoiding BPA. Researchers have found that the plastic stoppers so many of us use to cap an unfinished bottle, not to mention the lining of concrete vats used to store wine at many wineries, contain and can leach BPA into your glass. That’s not to say that all wine contains BPA; quite the contrary, in fact, as most bottled wine still never comes into contact with plastic and as such does not carry any BPA-stigma. Regardless, the more you know, the safer you can be—so that the worst thing you get from your wine is a hangover.

CONTACTS: Scholle, www.scholle.com; NRDC, www.nrdc.org; Bota Box, www.botabox.com.

EarthTalk® is written and edited by Roddy Scheer and Doug Moss and is a registered trademark of E - The Environmental Magazine (www.emagazine.com). Send questions to: earthtalk@emagazine.com. Subscribe: www.emagazine.com/subscribe. Free Trial Issue: www.emagazine.com/trial.

9 Comments

1. 1. SteveinOG 01:30 PM 9/26/12

   What about phthalates?

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2. 2. rock johny 02:47 PM 9/26/12

   What about frozen dinners? I've written some of the manufacturers and all i've gotten them to say is that they "use safe plastic". Can't get them to say the magic words.
   That's the worse kind because when heated in a microwave, BPA bleeds into fats. If our govt. was truly "for the people" (and not corporations) they'd outlaw BPA a long time ago.

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3. 3. EyesWideOpen 03:41 PM 9/26/12

   Isn't it common sense in this 21st century that wine acidity (the byproducts of fermantation or naturally occurring) will break down plastics, which Yahoo Answers indicates consist of "polymers (long molecules made of smaller molecular units joined together) and other ingredients such as fillers, pigments (for color), plasticizers, flow improvers, and stabilizers"? It would seem that boxed wines must contain a fermentation of plastic chemical ingredients beyond vineyard grapes.

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4. 4. jackvandijk 05:48 PM 9/28/12

   The real answer is to drink sufficient quantities of wine so that it does not matter what chemicals are in the container.

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5. 5. Scholle Packaging 11:38 AM 10/22/12

   Thanks for the reference in the this “Dear EarthTalk” article however, we wanted to clarify a few factual issues. First, regarding the answer of “it depends,” to our knowledge no bag-in-box producer uses a resin that contains BPA. Second, the recycling symbol number 7 means the product contains mixed plastics, that could, but not necessarily contains only polycarbonate. In the case of bag-in-box, the package in whole is made up of various types of plastics i.e. spout, tap and bag, making the package as a whole number7. Third, please note that the Bota Box brand does not contain BPA.

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6. 6. schristine in reply to Scholle Packaging 08:09 PM 11/16/12

   I believe that the article DID state that Bota Box wine is packaged in BPA-free packaging.

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7. 7. 1st health 11:44 AM 11/17/12

   It is very interesting how many of the wine companies like "Corbett Canyon" try and hide the BPA that is in wine boxes. After many contacts they refuse to comment or disclose this information. If it is not on the side of the box - BPA FREE! Don't buy it. It can be very bad for your health. Get another brand or stick with the bottles. Corbett Canyon and others should be more honest with their customers.

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8. 8. 1st health 11:57 AM 11/17/12

   Yes, many wine box bags leach plastic!

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9. 9. jackvandijk 07:40 AM 11/18/12

   let's stop buying these plastic boxes, that will force them to come clean.

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