Do you ever put anything but water in the ss bottles.Milk? of hot coffee
tea. just wondering?
Yes. All the time. I've lately been doing short hikes with my 3 1/2 year old daughter, and it's getting pretty cold in Upstate New York. So we've been carrying either tomato soup or hot chocolate on these hikes, in my Guyot Standard. Also, from time to time, I fill the Guyot with herbal tea. My Klean Kanteen Insulated bottle gets filled with coffee, cream and sugar every day.
Since we're talking about this, I'd like to address the properties of a good stainless bottle. As far as stainless steel having or developing a taste, it really doesn't. This is assuming that you're using a bottle from one of the better manufacturers, who use good food grade stainless steel. You hear people complaining about a steel aftertaste every now and then, but the taste is not coming from the bottle itself. That taste comes from tiny steel particles left inside the bottle, from the manufacturing process. It can be very hard to get rid of sometimes. But generally, a few very thorough washings will remove all of this dust, and give you a completely flavor-neutral environment. Your most neutral tasting stainless bottle is generally your oldest one. Think of it as a break-in period.
Once the bottle is properly cleaned, you should be able to put any kind of food you want into it. It will wash right back out. The smoother the surface of the bottle, the easier it is to fully clean. Klean Kanteens are very good in this regard. The surface is wickedly smooth. Think of a stainless steel bottle like a stainless steel kitchen pot. Nobody complains about not being able to remove a flavor from a stainless pot. All you have to worry about is rust. The chance of rust mostly has to do with the quality of the liquid going into it. To this day, none of my bottles have shown any rust whatsoever.
The lack of flavor holding is one of the best arguments for using a stainless bottle over a plastic one. The other very compelling reason, obviously, is the nature of plastic to breakdown and leech over time. We like to say that Tritan and Infinity is non-leaching, and made of nothing harmful, but that's stretching it. It's more of a matter of what we current understand as being harmful, and what we are currently able to measure. The science of ten years from now may have a completely different take on the subject of Tritan or Infinity, or plastics in general. The chances of science revealing something unhealthy about food grade stainless steel is much more remote, IMHO.
And, of course, you can cook with stainless steel over a fire. That's just not happening with most plastics, and not happening with Tritan, and as far as I know, Infinity.
Some people talk about the superiority of stainless steel bottles from a toughness standpoint, but I don't buy into that. I actually prefer plastic bottles for their ability to resist deformation. I've never had a plastic bottle crack or dent on me, buy my stainless bottles are riddled with dings and dents. The bottom of my Guyot looks like a bomb hit it.
One of my main gripes about stainless bottles is condensation. They develop condensation in unbelievable amounts, in comparison to quality plastic bottles. Having a stainless bottle almost necessitates having some sort of absorbent cozy, whether it be neoprene, neogreene, Shamwow or nylon. This, of course, does not apply to an insulated stainless bottle such as the Klean Kanteen Wide Insulated bottle.
Stainless bottles can also be a bit noisy. In my experience, sloshing water coming from a stainless bottle is much louder than from a plastic bottle.
Overall, I really like stainless bottles, but do also use plastic bottles. Plastic ages a bit better in the looks department. It's also transparent or translucent, so I can see the contents of the bottle. Plastic is nice and light, can be put in the freezer, and has far fewer condensation problems. But from a survivalist standpoint, I'll take stainless every time.