Review by Lee Abraham for Stainless Steel Water Bottle – Klean Kanteen Stainless Steel Water Bottle
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Last month I bought a 40oz Klean Kanteen bottle and a 33oz Sigg bottle. In the end I prefer the Klean Kanteen.

Both bottles are very light and look good. The Sigg is lighter, but not so much to really matter. Sigg wins easily in the looks department with different artwork to choose from and the bottle I have has a nice textured powder coat finish compared to the KK basic look and smooth surface.

Sigg uses an epoxy to protect your water from the aluminum and tells you not to use the bottle for long term storage. Could be a bit worrisome not knowing what’s in the epoxy and the possibility of aluminum contamination. I have not noticed a metallic taste from either bottle drinking straight unfiltered tap water. I prefer the stainless steel of the KK just because it’s probably on the safer side.

The bottles are both lightweight and made of thin metal. I haven’t dented either but I have been very careful with them. Both feel like they would dent quite easily. I have not scratched either bottle and the paint on both looks like new after daily use from work to the gym.

The KK bottle has the cap threading formed into the neck of the bottle while the Sigg uses a metal ring insert in the top of the bottle to thread the cap onto. Some people have complained that the Sigg’s threaded insert is sharp, but I have not had this problem. The KK is more comfortable to drink from though. Also the wide mouth of the bottle makes it easy to put ice cubes in, which you can’t do with the Sigg unless you have very small ice cubes.

I have the loop cap on both bottles. The Sigg I really have to twist the cap on tight so it doesn’t leak. The KK cap seals quite easily and has never leaked. The KK also uses a thicker thread size and is easier to screw the cap onto because of this.

Some people are complaining about sweating. On a hot day with the bottles filled with ice cubes both will sweat, but plastic bottles will also.

If I was going to spend that much money on a water bottle again, I would go with Klean Kanteen without a second thought. The only advantage of the Siggs is the exterior design.

Update Dec 09: Over a year of use now and I have stopped using the Sigg due to their older bottles do in fact have BPA. Something they said it didn’t have, so I won’t buy another bottle from them again since it appears they were lying before. They will replace the older bottles, but you have to pay shipping.

I have 2 Klean Kanteens and both have held up well. Some minor scratches and dents, but still look quite good.

Review by Traveler for Stainless Steel Water Bottle – Klean Kanteen Stainless Steel Water Bottle
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The Klean Kanteens are likely the safest reusable drinking container in the US right now. The plastic containers containing BPA have been found to be unsafe and there are some concerns about Klean’s major competitor, Swiss based Sigg, which uses an unknown patented liner of some kind inside their aluminum bottles.

The issues with the Siggs are twofold. One, we don’t know what the liner is. The Sigg company won’t say what it is, although they insist it’s completely safe. Two, if the liner fails (which Sigg insists it won’t do) you’ve exposed your drink to aluminum which many folks have legitimate health concerns about.

Speaking of concerns, the BPA containing plastic is NOT what is used in the Kantean lids. The idea that the plastic lids (which would have only very minimal contact with the contents – if the bottle is laid on its side for example) is somehow dangerous is only theoretical at best. Likewise, the same for the Sigg bottle lining. Both, neither or one could be completely safe. We do know that the BPA plastic is dangerous and neither bottle contains that.

Unlike some other buyers, I have had zero problem with leakage. I’ve also found the somewhat wider mouth to be extremely practical for using ice, drinking, and washing.

However . . . I have owned my 27 oz. Klean Kanteens for a few weeks now. I washed and rinsed them (probably six times) before I ever drank from them. The water I tested tasted and smelled like metal.

I have since washed one of my Kanteens multiple times with boiling water (the stainless steel conducts heat so you have to be careful doing this) and cold water, and none of it makes a difference. I continue to smell metal and I taste metal when I drink water. I don’t think this is dangerous in any way, but it is annoying and it severely limits my use of the bottles. I’ve found that I can only use my bottle for flavored drinks.

My sense of taste and smell is generally pretty strong so I suspect each person will experience something different. Other reviewers have said they can’t taste a thing or they got used to the flavor and don’t even notice it anymore. After reading reviews all over the net, however, it’s a fact that there are many of us who simply can’t ignore the taste and smell.

So what to do? Me, I’ll keep the Kanteens for flavored drinks, but I’m going to go out and get a Sigg for water. There’s no other choice at this time.

If you have a strong sense of taste/smell you might have a problem with Klean Kanteens. Don’t make the same mistake I did by ordering a bunch of these without first knowing if you’ll have an issue. I strongly recommend you purchase only one bottle at first to see if you’ll have a problem. If you can’t taste anything then you’ve found the perfect water bottle.

Review by M. ANNE for Stainless Steel Water Bottle – Klean Kanteen Stainless Steel Water Bottle
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This is an excellent stainless steel bottle which both my husband and I use daily. I bought the orange one; he uses the regular stainless steel. We used to buy tons of the plastic water bottles, drinking several a day, but wanted to cut down on our use of plastics. These water bottles work well in conjunction with my water filter system and the taste is clean and fresh tasting. Highly recommend them and this is a very usable size.