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<pre>Hi Peter,

In the experiment you have made with cork versus cap
what type of cork did you use. was it something like
the plastic headed cork that is common for liquors.
and more important is the bottle neck. what type of
bottle did you test with.

Of course I accept the fact that alum cap is a better
alternative in terms of reliability but what bothers
me is that a natural product like olive oil would
better be presented in packaging as natural as
possible. And in that sense cork sounds better than a
metal-plastic combination.

regards
Selcuk Gider (TR)

--- P Caird <caird@...> wrote:
> Selcuk
>
> The fact, as you all know is, in the case of wine
> the cork provides good protection
> provided that it remains moist (the bottle is kept
> laid).
>
> In the wine industry the corks are pressure fitted.
> In common practice with olive oil they are not. How
> many times have you had to get a cork screw out to
> open a bottle of oil? Some do, the overwhelming
> majority do not. Typically, the cork is a
> hand-pressure closure and, in most instances, a
> lessor grade cork is used than the pressure corks.
> The latter have to stand up to greater force of
> course.
>
> I suppose we could look as pressure corking but
> that's yet another expense. Or perhaps move over to
> plastic "corks". In either event, unless said cork
> is pressure fitted then oxidisation will occur.
> Because the oil lacks wetness, as you point out, the
> cork ultimately shrinks rather quickly and before
> the oil has time to reach its "Best By" date.
> Pressure corking is also a detraction from the
> consumers point of view. We expect the pleasant
> charade of opening a bottle of good wine with a
> corkscrew but it doesn't gel with oil.
>
> This is why we have gone to some lengths (and costs)
> this year to move toward a tamper proof aluminium
> seal that has a built-in oil pourer. Just like the
> supermarket ones. We have gone one further step
> however and added a shrink seal over the top of
> same. Looks good.
>
> We have inverted both the ordinarily cork sealed
> bottle and the new one to test for leakages. The
> cork one leaked overnight, the new one hasn't after
> two months. I guess the lesson is, if one does use
> cork make sure it is a pressure fitted one and even
> then I am not so sure.
>
> Regards
> Peter Caird
> www.victorianolivegroves.com
> AUSTRALIA
>
>
>
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