Klean Kanteen Cap

After several months of owning a 27oz bottle with this cap, I wondered why the beverage tasted funny, here when I put it in the sink to wash it, the cap would suck in soapy water. I ended up drilling some holes in the bottom and could not believe all the soapy water that came out. I will now stick with the drinkable caps at least I know nothing is going to spoil my beverage.

I ordered these as replacements to the plastic lids that came with my kanteens. They came with a "Made in China" sticker on them, so I soaked them in the sink to get the stickers off. They wanted to float, so I had to put something on them to hold them down in the water. A couple of hours later (I got distracted!), I picked them up to scrape off the stickers, and what do I hear but sloshing water... the lids had taken in water, but there was no way to open them up and get it out. All I could think was that the soapy water would be slowly leaking into my drinking water. So... it was back to the plastic lids Klean Kanteen Loop Cap/Polypro for us! (BTW, HealthEGoods was very helpful about returning them).

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I purchased several stainless steel caps. The adhesive from the labels wouldn''t come off, so I soaked them in soapy water. The expensive lids now have water trapped inside where bacteria can breed. I can''t get the water out; the caps are unsafe to use, and I''m out the money.

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I joke that I''m going to singlehandedly ruin the environment by buying new caps, trying to find one that doesn''t leak. I have the steel loop cap and it leaks probably about 50% of the time. Somehow the water always finds a way to seek out any electronics in my bag. Maybe some teflon tape will fix it?

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I like this cap better than the stainless/plastic one that originally came with my Klean Kanteen. This cap is simpler, all plastic (polypropylene, which has a fairly safe reputation at this time.) Easy to wash, goes through my dishwasher in the silverware basket with no problem.

While the original has the advantage of minimizing plastic contact with the water, it somehow gets water trapped inside it if washed in the dishwasher--but then it''s very hard to get that water back out. Also the all-plastic flat caps I bought get water trapped inside them. But this cap seems to have a design with no place for the water to get trapped. Another reviewer complained about water getting trapped in this cap. Either

1) he has it confused with on of the other caps (flat top or stainless/plastic)

OR

2) they changed the design of this cap between when he bought his and when I bought mine

OR

3) I''ve just been lucky so far.

The one way I think this could be improved would be to have some sort of texture around the edge of the cap to make it easier to grip for tightening and loosening. As it is, the surface there is a bit too smooth; so if your hands are wet, weak, or greasy from hand lotion or fried chicken you kind of have to stick your finger through the loop to get leverage. (The flat-top plastic cap does have a texture there that makes it easier to grip.)