What material is the inside of the cap? What will be touching the liquid?
1739947
It's a plastic cap with a rubber o-ring (seal), the seal does not touch any liquid, it's on the outside. It's a good bottle, I bought it for a sauna, and have had no problems with it functioning in 180º heat
868274
The interior threaded lid area of the bottle is metalic (as you can see by the photo it's a gold tone, likely stainless steel following the majority of the bottles construction). The cap threads however are black plastic.
2253257
The interior of the mug itself is stainless tell. Liquids in the mug will touch the lid (which is plastic) when it is tightened onto the mug.
232420
the outside is but it is lined. i don't know what the interior is. the cap does not screw off.
1952143
From the research I did, it will freeze around 22 Fahrenheit. I don't know what liquid is inside.
2089296
It is in a plastic bottle. The plastic cap is used as a measure. Give it a little time to see results.
1087529
I think there is a small screw that holds the cap in place. I'm not home so I can't check mine out. Sorry.
693426
Liquid. Haven't had any trouble with it yet. I use it on our ice fish house
911316
I just looked and while most of the cap is plastic, the part that touches the water is steel, and then there is a gasket. So the only plastic that would touch water is a little bit of the gasket seal which insures water proof. This is a quality item of very good manufacture, I love it.
1414257
This is a high quality thermos. The cap is non-metal. It is a single walled thermos if you were unaware. It is not designed to keep liquids at desired temperature. I have no complaints about the thermos.
1478472
I have not used it yet. The cap, I think is a special type. If you will notice there is, what I think a slight separation.
2276441
the cap is plastic that you can easily remove. the little drawer can be taken out and cleaned with water. I don't think i need to clean inside part yet
2054038
I don't know, but would suggest you contact Thermos. Probably you'll need to buy the cap.
1390931
Cap is made of plastic. I don't know how heat resistant it is but I wouldn't try boiling water with the cap on.
1896604
Did you check the company's website? In the FAQ's section it clearly states: "Our pour caps are made of FDA-approved BPA-free number "5" Polypropylene plastic. While it is not the organically-derived (i.e. plant/bio-based) plastic typically used in disposable products, it is recommended as the safest choice for food and beverages." If this is not sufficient details for you, then contact the company directly. Because the food is in contact with the lid only briefly and we do not heat the lid, I am not particularly worried about possible leaching. I'm so happy to have a lid that works!
124143
The cap outside is stainless. The inside is plastic, with a stainless disk/plug where the juice or water would contact the lid. I don't know if the plastic is for a better seal or to minimize abrasions on the top of bottle. I do recommend the bottles if your looking for a glass bottle with something better than a simple plastic cap.
867033
The lids are twist tops. some of the ingredients may be wedged just gonna take some elbow grease. If it is salt crystals try soaking it in warm water for an hour or so.. contents will be ruined, but at least you got the cap off make sure it is thoroughly dried before replacing the cover.