Foolproof containers for oily stuff?

The hard sided mini Nalgene containers work well.

Yeah, I'm very interested in this myself, after just having had pesto leak all over the inside of my bear canister.

Bagging oils inside multiple layers of ziplocks may work.

I find single-serving packets of olive oil to be extremely convenient, although a little expensive: http://www.minimus.biz/

Ive had good luck with film cannisters so far.

I take olive oil in a small screwtop Nalgene on shorter trips and in an 8oz disposable water bottle on longer trips. They've both proved foolproof (me being the fool), even filled at sea level and taken to 10k feet.

I don't often take goopy stuff but if I did it would probably go into a widemouth screwtop Nalgene or equivalent. Stowing that in a ziplock would provide some insurance.

Cheers,

Rick

We take olive oil in little Mini liquor bottles. They seem to hold the seal well. Most other things do not !

+1 on nalgene screw top containers. I've tried other snap lids and what happens is everything looks fine when you load it with butter or whatever. But then it's inside your pack where it's upside down and it's 100 degrees and it turns into a very thin, slick liquid that finds it's way through the seal…

another yes to the small Nalgene screw top containers.

I'm surprised to see so many people saying positive things about the nalgene screw tops. I have one that leaks oil every time. For a while I was carrying it in a ziploc bag (because I wanted a wide-mouth container for oil-packed sundried tomatoes), but now I've given up and just use an 8 oz juice bottle for straight olive oil.

The bottle I have is this one, in an 8 oz size:
http://www.moosejaw.com/moosejaw/shop/product_Nalgene-PC-Jars_10090287_10208_10000001_-1_

@nathan: The odd thing is that the Moosejaw page's description of the jars says, "Jars are not recommended for liquid storage." But yours doesn't leak? If they're not for liquids, I don't know what that means they *are* supposed to be for. What does PC stand for?

I think a lot of people use the travel-size hotel shampoo/conditioner bottles for one thing or another, and I'm guessing they'd be fine for food too.

Hmm, that looks like a jar, and it does say not for liquids. I meant one of these:

REI link

“What does PC stand for?” Probably polycarbonate (Lexan)

Yeah, I see that it says not for liquid on the website. I got mine years ago at a moosejaw retail shop, on the staff's recommendation about a wide-mouth container for peanut butter. Maybe it would work fine with industrial homogenized peanutbutter, but putting any sort of natural stuff in it results in peanut oil all over your pack. I started trying to use sun-dried tomatoes in it a couple years later, when I'd forgotten about the earlier peanut experiences.
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And to clarify: the nalgene bottle I linked to *does* leak, so I've replaced it with a "disposable" bottle that came full of juice, which seals fine.