Are these borosilicate? Does anyone know if these are autoclavable (including the caps)?
1369383
When I ordered a smaller set version because I needed some more, I remember that the company on the package was Chinaglaze. Other than that information, I'm not really sure. The caps are plastic and I don't think they would sustain in high temperatures.
1897274
I don't know. They seem like they are. They feel, look and perform as they are 100% silicone, but I am not a scientist nor was there a label claiming such. I am very pleased with these. I am not sure how you could be sure of 100% silicone though. Good luck with that.
885786
These are ceramic/glass - no BPA involved. BPA is a plastic issue or food-can-lining issue.
1827251
Yes. They are very cheap (feel dirty after using for a long time). They are thin. They are copper/bronze on the outside, but silver on the inside (I used a file to smooth down the rough edges and you can see the silver color). They can be bent by hand. However, they are metal. They stack and clink like metal, too.
300202
They are great, clear and 10ml. Caps snap on and stay on. I would buy them again.-Paul
420589
Yes. I have found when they state "small caps" in the description,that is what I receive. Also, mine have come in cold packs. You should check with the seller you are buying from to make sure they will use cold packs.
2112318
No they're not. When you're brewing Kombucha, the temperature change wouldn't be sufficient to crack regular glass, so borosilicate glass isn't necessary.
2161571
Pretty certain they are plastic, I can't check as they are all inside a lighting project but I am certain they were not ceramic. However, they work great and I am very happy with them.
2203460
The caps are plastic, and require use of a gasket to make a tight seal - and the gasket is also plastic. Mine nearly immediately went bad upon contact with olive oil in the bottle. I was able to order replacement gaskets through Amazon. Very good question about the caps: I don't know. But on re-examining one of my bottles just now, I would guess that lifetime maintainability by replacing the caps was never considered in the design. You would need pliers, good manual dexterity, and great luck not to shatter the bottle. So in short, this is an expensive bottle that's generally not intended for long life. I hope this helps.
1084811
They are aluminum and have a rubber striking surface where the primer would be. These handle nicely, I like 'em much better than plastic & spring caps.
1703958
They are either silicon, or silicon-like. Whatever they are made of, they are incredibly pliable, do not dry out , and work extremely well.
2251527
EZ Cap only makes plastic caps, not ceramic. A a seller of this item, as much as we'd like, we're unable to edit the description to reflect this! So for anyone looking, these are PLASTIC CAPS.
1431749
I have these, and near as I can tell they are plastic insulated. Definitely not rubber, Si, or neoprene.
967145
YES! They are NON BPA which makes it even a more fantastic buy! I took a picture of the label where it says it, but do not think I can put it up here.
2040773
I am looking at the box they came in and on the front it states "Plastic Storage Caps BPA free for versatile storage. I hope this helps.
1662649
They are the shade A2 or A3, I used them in a set of fake teeth I made. You can see the teeth here: https://www.facebook.com/photo.php?fbid=10201156612231425&l;=abcc3ba9d8 They are not caps, they are the whole tooth. So for example, when I made them in to teeth, I had to file the backs down.
2137931
I do not know about the autoclavable part but the marks are on the outside.