SIGG Bottle Liners Show Traces of BPA

Last week we received a letter from Steve Wasik, CEO of SIGG Switzerland admitting our worst fear – trace amounts of BPA were found in the liner used for all of their aluminum water bottles manufactured before August 2008.


“Prior to its transition [in August 2008], SIGG utilized a water-based epoxy liner which contained a trace amount of BPA. The bottles were thoroughly and regularly tested in both the USA and Switzerland and all tests revealed absolutely no migration or leaching of BPA or any other substance from the protective inner liner. These tests have been public information on the SIGG website for several years and remain there today.

Despite the fact that these bottles were manufactured well within strict international regulations and posed no health risk, my team and I initiated a project in June 2006 to develop a new liner which would be both BPA free and produced in a more environmentally friendly manner. We recognized early that there were questions surrounding BPA and we wanted to be sure that we had a bottle liner that you, our customers, could have absolute confidence in.

 After two years of comprehensive testing and development and a one million dollar investment in new equipment for our Swiss factory, SIGG began producing bottles with our new, next generation “EcoCare” liner in August 2008. Providing the same quality and protection afforded by the previous liner, this new powder-based, co-polyester coating has been thoroughly tested and is certified to be 100% free of BPA, phthalates, BADGE, BFDGE, and NOGE. It is also environmentally friendly as its application generates virtually no waste and utilizes no organic solvents or VOCs. Our new bottle liner is not only a technological advance; it’s a major step forward in SIGG’s journey towards sustainability.

To be clear, all SIGG bottles made since August 2008 contain our new BPA free EcoCare liner. SIGG bottles manufactured prior to August 2008 have the former water-based epoxy liner which contains trace amounts of BPA. These bottles have been thoroughly tested and showed 0% leaching of BPA. It is easy to determine which liner you have, as they are of 2 distinctly different colors. Visit to see photos comparing the two.”

If you have any questions, you can email Steve at

Bisphenol A (BPA) is a chemical used primarily to make plastics, but also in the synthesis of polyesters, as an antioxidant in some plasticizers, and as a polymerization inhibitor in PVC. It is a key monomer in production of epoxy resins and in the most common form of polycarbonate plastic used to make a variety of common products including baby and water bottles, sports equipment, medical and dental devices, dental fillings and sealants, eyeglass lenses, CDs and DVDs, and household electronics.

Suspected of being hazardous to humans since the 1930s, The Food and Drug Administration (FDA) says that current levels of exposure to BPA are not an immediate health risk. However, the FDA acknowledges that more research is needed. If you’re concerned about potential risk, Mayo Clinic suggests taking these simple steps to reduce your and your family’s exposure to BPA:

  • Choose glass or BPA-free plastic baby bottles.
  • Use glass, porcelain or stainless steel containers for hot foods and liquids.
  • Avoid plastic containers with the No. 7 recycling label — they’re made with BPA.
  • Don’t microwave polycarbonate plastic food containers. Use glass containers designed for microwaving.
  • Reduce your use of canned foods — many cans are lined with a BPA-containing resin 
Did you know? Eden Organic Beans are packaged in BPA-free cans!

Tip: Eden Organic Beans are packaged in BPA-free cans!

When we first considered carrying SIGG bottles years ago, owner Aaron Gottlieb and his staff researched the materials and manufacturing processes of SIGG Switzerland in depth to ensure this exact situation would never happen. Every piece of information we found about SIGG was positive, no sign of even the slightest worry of BPA contamination.

We are very dismayed to find out that we were misinformed, that SIGG itself was aware of possible trace BPAs in their liners and that not even the most thorough research was able to turn up any public information on the issue. This is just another example of how BPAs are hidden in our society – first plastic bottles, now aluminum bottles, what’s next?  

Prior to this information being released, we had already decided as a company to no longer carry SIGG bottles in our stores. This decision was based on inconsistencies in the product and also the lack of transparency of the company (ie. they would not fully disclose what was in their liners). Once our current stock of SIGG bottles run out, we will be carrying a line called Klean Kanteen. We look forward to offering you a safer, quality option for reusable water bottles.

NOTE: This is not a recall of SIGG products. Testing has showed no leaching of BPAs from the liner into your water, however if you would like to return your old (manufactured prior to August 2008) SIGG bottle, you may bring it into either Native Sun location for a new replacement SIGG of the same size.


10 responses to “SIGG Bottle Liners Show Traces of BPA

  1. Shame shame shame on SIGG!!!!! I’ve spent well over $100 on their bottles thinking that I was buying the best only to find out I was getting shammed. So glad you are taking a stand and refusing to carry their products any longer.

  2. Thanks for your great post regarding epoxy liners and concern with aluminum bottles. I wanted to just clarify that SIGG bottles are aluminum, not stainless steel. Stainless bottles do not have liners inside them therefore are a safe alternative. Thank you!

  3. Right you are Danelle! I have made corrections to reflect that SIGG bottles are aluminum NOT stainless steel. Good catch & great point!

  4. Connie Jo Gandy

    via Facebook – Thanks for the info. I too had done the research and came to the ‘safe’ conclusion. And my SIGGS are 6 years old. Yikes!

  5. Tracy Chamberlin

    via Facebook – LOVE my Klean Kanteen!

  6. Denise Correa Turner

    Aw, that’s why I LOVE Native Sun. You guys are always on top of everything and make the best decisions. That’s why I feel confident buying items from your store. Thanks for your response! I will share it with a few other parents who are concerned about this. 🙂

  7. Melissa Karrh

    via Facebook – Native Sun is awesome. Thank you for looking out for US!

  8. Tim McCaulley

    via blog subscription reply

    Hi Aaron (and staff) —

    Regular emails like this one are exactly why I travel all the way from Arlington to Mandarin to shop at Native Sun. Having just bought one of your Chinese made Enviro Product stainless canteens (because it was the larger size I wanted) and regretting doing so because of the abominable labor practices in China, I look forward to purchasing a Klean Kanteen as soon as you stock them.

    Please know that your persnicketyness matters to me and I suspect to everyone else who shops at your store.

  9. Hi – thanks for the info on the water bottles, was just getting ready to buy some, but wanted to do more research. Haven’t time to do facebook and twitter, and not very technical, but certainly enjoy your page. Have been a customer since you opened the first store and drive from the beach shop there.
    Have a question for Aaron/staff or others out there that may know the anwer — don’t know how to submit a question so trying this out. My question is about nail polish. Currently, Native Sun does not carry “safe” nail polish. Don’t even know if it exists. I’ve never worn it due to the nasty ingredients and my young daughter would love to wear it but we both have health issues and even if we didn’t, wouldn’t want that poison absorbed in our bodies. Some health food stores offer toulene free nail polish, but still has the acetate, etc. Maybe it has to have dangerous ingredients to adhere to nails, but I’m sure there must be something safe, even if it only lasts a day. Anyone have any info to share? Thanks.

  10. Write to the CEOs at Sigg and parent company Riverside and voice your outrage at their lack of disclosure. I wish I lived near a Native Sun because you would have my business. What an honorable thing to do regarding the bottles. This was a sin of omission as Sigg knew exactly what they were doing when people started buying their bottles as they rebounded from the news about BPA in plastics. They cared about their bottom line and not about the people who were purchasing their products. How can you continue to trust a company like that. Shame on them!

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