Glass bottles for newborns as they can be easily sterilised, and be sure they have a silicone nipple that also forms the seal to the glass of the bottle.
Once they get old enough to use their own, use the playtex disposable liners. No sterilisation or cleaning required, so you only have to do the nipples, which by this age can be just soap and water.
http://www.chemicalsubstanceschimiques.gc.ca/challenge-defi/...
The Think Baby non-polycarbonate bottles appear the best for a rigid bottle, but personally I wouldn't trust something that's going to be washed extremely frequently, scrubbed with brushes or thrown in a dishwasher. You use them for up to 3-4 years, so I wouldn't trust reusing a bottle as it will age.
The playtex liners was below the detection threshold on their test, which was to put boiling water in them and then hold the temperature at 60C for 2 hours. For me that's more than safe enough for the 35C milk I'm putting in it for my kid to drink within 2 minutes.
I honestly think disposable is the way to go, because it eliminates the risk of the materials degrading. These tests are on new, not 1 year old, so the only ones that are valid in every use scenario are the disposable ones.
manufacture produces much more stress than your cleaning would, causing much more to be free on the surface
Aluminum is not toxic when it comes to the levels that might end up in your food. Aluminum hydroxide is an FDA approved antacid.
Aluminum cans are coated not to keep the aluminum out of your food, it's to keep acidic food from corroding the aluminum.
Just don't use aluminum citrus squeezers or cook your tomato sauce in aluminum pots (as their useful lifetimes will suffer, and the food might take on a weird taste.)
It would also seem that most of the danger from aluminum cookery, where there is such, comes from impurities in the recycled aluminum (lead, and other hazardous metals).
> very small amounts of Al are needed to produce neurotoxicity and this criterion is satisfied through dietary Al intake
I wonder if those will see a comeback of sorts by the 'lets go back to the past for inspiration' folks. Not that the past does not have good things but lots of paleo things are just not that scalable... I mean, imagine all the leather we'd need..
The transition from plastic to glass isn't that hard at all, you just have to be slightly more careful when it comes to carrying one. Simply throwing the bottle across the room to somebody becomes dangerous as compared to throwing a plastic water bottle.
This year I'll be moving to storing my leftover food in glass jars, [0] le parfait do really good ones (they are expensive but worth it in my opinion). I'm still figuring out how I will store frozen meat I get from the farm.
Use stainless steel baby bottles. There are couple different companies that make them, we use Klean Kanteen. There is some plastic (the ring to tighten the nipple down) but the liquid never touches anything but stainless steel and silicone.
Is it possible to make stainless steel baby bottles?
* for various reasons we fed with formula only and premeasure formula and water before bed for quick mixing in the middle of the night.
I would heat an exact amount of water for a specific time in the microwave to get a specific temperature. I started reducing the time in the microwave by one second a day and he never noticed.
Aluminum bottles are a non-starter: aluminum is toxic to humans, and has to be coated to not leak into your food. Often times there's a plastic liner to prevent the aluminum from coming into contact with your food/drink.
Some steel bottles are crap: they actually do stain/rust, and being non-transparent this can be hard to spot.
Glass bottles are nice, but obviously more breakable/dangerous than metal.
Personally, I don't trust any plastic bottles: not Nalgene not any other kind. Had a Nalgene bottle once; after it took on a stale water odor, I could not get it out with anything. This article particular finding is far from the last one in terms of which plastics do what to the organism.
For baby bottles... I guess the search is on for the next best type of bottle.