That's a pretty good guess. It shrinks a bit and the cream turns the same color as the twinkie. The most obvious trait is that it becomes hard like a rock.

I'm sure there are all sorts of little nasties in my bunga pads. They get pretty gross after use.

I wouldn't have expected that it would go stale. I figured on sticky and mushy.

I used to work for a convenience store chain HQ and we had a folder full of "C-Store" jokes. Example: Hot dogs are the perfect c-store item. Put them on the rollers in the morning, sell them throughout the day, by the evening any left become slim jims for the next day.

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Here is a set of discussions on the Lexan bottle scare, from a sea kayak site.

http://cpakayaker.com/forums/viewtop...6ad5b9a8e00600

As mentioned there, if you aren't putting super-hot water inside, Lexan isn't really a problem. All plastic food containers have the same theoretical issues - replacing one plasticizer with another, which is what you probably do if you pick a BPA-free plastic, may not help.

Virtually all food and beverage containers have some low level risks, also mentioned in that discussion, because all substances react chemically with other substances. Skating and driving to skating is probably a lot bigger risk than water bottles.

If you like Nalgene, see their comparison chart.

http://www.nalgenechoice.com/compare.html

Maybe you'll decide you want their (heavy) stainless steel bottles, which probably are BPA free, though steel reacts with some drinks too.

I like Nalgene bottles. They don't leak much.