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Old 01-20-2007, 10:18 AM   #1
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Question Storing Olive Oil (refrigerate or not?)

I recently purchased a 3 litre can of olive oil - it is a cold pressed, extra-virgin olive oil which contains no chemicals or preservatives. I have opened it and put some in a glass decanter on my counter for immediate use.

My guesstimate is that it will take me (max) a year to go through all 3 litres of it.

I live in an apartment, so I have little control over my heating, nor do I have a cooler place to store it. Most of the time the temp in my apartment ranges from high 60s F to low 70s F. My kitchen is not air conditioned, so in summer it can get a lot hotter (in the 90s during a summer hot spell).

MY QUESTION is how best to store what's left in the can? (It has a nice taste which I would like to preserve.)
> Should I just leave it in the original can in the cupboard?
> Should I decant it into glass jars and store it in the refrigerator? (I'm aware that refrigerated olive oil congeals but returns to a liquid state at room temp - I don't know if long term refrigeration affects the flavor of the oil).
> Should I do a combo? (eg - keep what I estimate I would use over the next few months at room temp but refrigerate the rest?)
> In general, would it better to put it in glass containers for long term storage even if it is stored at room temperature? (will the metal affect the taste of the oil over time?)

Tell me, wise people, what is your advice? And why?

Thanks!

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Old 01-20-2007, 10:32 AM   #2
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the most Critical part is that whatever you store it in MUST be 100% airtight and away from Light!

O2 and UV are the prime cause of oxidation in foods, it`s the oxidation that ruins it :(
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Old 01-20-2007, 10:35 AM   #3
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I would store it in a cool (not cold) area....in the dark....keep the lid on tight....do not expose to light, or air...The bottle on the counter needs to be dark (maybe green) not clear...You can refrigerate but it will turn cloudy..however it will not hurt the oil.......Ny experience anyway...
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Old 01-20-2007, 10:44 AM   #4
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Quote:
Originally Posted by YT2095
the most Critical part is that whatever you store it in MUST be 100% airtight and away from Light!
As I said, the can has been opened so, in a sense, it is no longer "air tight".

Also as I said, the oil is currently in its original *metal* container plus it is stored in a cupboard, so, obviously, it is not subject to light. If I stored it in a refrigerator, it also (obviously) would not be subject to light.

The small amount I keep on my counter for immediate use is consumed within two weeks. I don't think this results in any significant degradation.

Basically, my question(s) are about the effect of temperature on long term (e.g. - up to 12 months from date of purchase) storage of the oil and, secondarily, the effect of metal (again, over a 12 month period) on the taste of the oil.
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Old 01-20-2007, 11:03 AM   #5
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no effects from the metal, it isn`t Raw metal it`s coated with a thin polymer.
by Airtight I simply meant that the cap is replaced and it`s not one of these cans that you bang a hole in with a knife and pour (no way to seal it).
although when you get past halfway into the can, I would consider decanting into smaller vessels with no air gaps.

the temp should have no deleterious effect upon the oil.
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Old 01-20-2007, 11:28 AM   #6
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You are already half way there because it is in an opaque can. Now just some place not terribly warm. AND you may enjoy it so much you'll use it faster than you think. I don't think the amount of air in a can is going to greatly affect it. Light really does.
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Old 01-20-2007, 11:36 AM   #7
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I'd put it in the fridge, myself.

But even oil kept closed tight and in the dark will go rancid eventually.
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Old 01-20-2007, 12:00 PM   #8
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Jennyema is correct....it will go rancid over time...

Good quality oil...properly stored should go 12-15 months...

In origanal container...NEVER opened...2 years
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Old 01-20-2007, 12:04 PM   #9
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Agreed, I read it as 12 months or less also here:

Quote:
Originally Posted by subfuscpersona
the effect of temperature on long term (e.g. - up to 12 months from date of purchase)
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Old 01-20-2007, 12:47 PM   #10
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Keep it in a dark closet. No need to put it in the fridge.
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