Would the cap hold pressure? I would use these for Kombucha
1100637
No, I would not reccomend because the cap gets water stuck inside and then gets a rusty smell.
1100638
I believe they would. There is a washer in the cap and the bottle has 2 grooves of threading so it screws down pretty well.
1398065
These caps fit common 2 liter plastic bottles. However, I'd recommend the "carbonater" (sic!) caps, a real regulator, ball lock fitting, and food grade hose, as available from Amazon or brewing supply places online. The Fizz Giz system is a hokey kludge, really, and if you want to do it that way, just get a sports ball valve and stick it in the cap of your choice; simply drill a hole and insert.
1957380
NO. The item is not able to hold any pressure within a beer can or a soda can. There is one out there that I have used that works as you want but it breaks easily and to often to even recommend it.
1459591
I think it will work. They are a harder plastic than normal kcups but I really like them. Just don't over fill with coffee. I have found that will cause overflow.
1158973
They should work fine because they are built heavy duty. And the cap has a built-in spigot to make dispensing the water easier. Just remember that these things are heavy when full: about 56 pounds (and somehow it feels even heavier). So even though they have a stackable design, I would not store them that way in a boat.
226962
Yes, as long as the growler can be capped. No twist caps. Leave more head space before you cap it, otherwise you Co2 will pop the cap. For ingredients, just go to your local home brew store where they'll help with the ingredient kits.
226188
Not really. They keep air out. They will not keep pressure in the container-it will go flat
951731
yes there is a gasket in the lid and they seem to hold pressure from the small reactions that I use them for.
1371775
Yes. I've personally used these on regular and flat bottle caps with no issues.
1821442
I have seen squeeze bottles with caps so I guess anything is possible. However, to answer your question, I don't know if any cap would fit as I have never tried to do that. Sorry I could not help you.
226965
No. The caps of growlers are not designed to handle the pressure that happens through natural carbonation process with home brewing. Many, many forums and books (such as Joy of Homebrewing) specifically mention not attempting this. Ask a local brewery who bottles with growlers and they will tell you the same thing. Better off sticking to regular brown bottles or, as others have suggested, Grolsh style bottles with the flip lid. Screw-top glass bottles do not work either.
710773
The spring caps are not designed for the 12 oz. beer bottles, there is no place for them to grasp on the side of the bottle neck. You need to get a capper and caps.
1957379
I have only used it for a soda can and only for a few hours. I found these do leak if you leave them on and drink with them. As I didn't find the fit that great on them I actually threw them away.
186912
They will give way fairly easily until they are at their maximum opening (4 1/4" tip to tip). Fine for 12 oz cans and 1/2 L plastic bottles. I would not recommend using with a Big Gulp.
1583684
No. Too small. Strong though. They are too thin or bottle cap. Could probably do it if you doubled it up or even tripled them by stacking .
335112
Hmmmm, can't say for sure, but I think that they would fit if you lie them down. Also depends on what kind of bottle. Some brews have a taller bottle, i.e. Heineken used to use shorter bottles, but now they are taller. Since I gave the item for a gift, I don't have it in front of me to check; but I am going to say that they would fit. Hope that helps!!
1186957
I know from experience that the silicone Pura sippy spouts fit these bottles, so their flat silicon caps might fit too.