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<pre>Greetings …

I've just read through some more of the messages posted here
regarding oil extraction percentages and it prompted me to send this
short note.

For people quoting "laboratory yields" could you please
always
include the exact methodology used. There are a number of accepted
laboratory techniques used to calculate oil content in olives:

1. Soxhlet Extraction
2. Goldfish Technique
3. Acid Hydrolysis

However, I recently saw a percentage yield listed as a
"laboratory
yield" which did not use any of the above methods and from
further
enquiries it appears that it was done through a normal centrifuge
located at a laboratory.

The more consistent we can be in our testing and publishing of
results the better for everyone.

Thanks,
Julian Archer
Olives Australia
</pre>
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