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<pre>Peter Hi,

Your quite correct about having to use a pressure device to insert the cork,
we invested in one right at the beginning and we have yet to have a bottle
leak.

We've also never had a problem with mould on the cork, all our oil is stored
like wine on its side in racks and there are no leaks which I guess proves
your point again about pressure sealing.

We also have our corks specially treated as I said in my original email.

This consists of two metal disks that are inserted into the cork near each
end and they are also treated with a substance that is meant for corks used
in oil. They are then sterilized and seals in plastic packs.

We are also considering the use of another closure but have not yet finished
our investigations

Regards

Mike
-----Original Message-----
From: P Caird [mailto:caird@...]
Sent: 17 July 2002 13:09
To: OliveOil@yahoogroups.com
Subject: Re: [OliveOil] Corks in Olive Oil Bottles


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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