Archive
lab-testing
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Lab Testing: What to Test, Where to Test, How to Read the Certificate
Testing does not make food safe; control makes food safe and testing checks it. What to test, where, how often and how…
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How is aflatoxin testing done?
By a prescribed sampling scheme first, then screening by ELISA and confirmation by HPLC with fluorescence detection or LC-MS/MS. The sample plan…
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What is peroxide value in seed oils?
A measure of primary oxidation products, determined by ISO 3960 and expressed in milliequivalents of active oxygen per kilogram. It rises early…
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Cold-Pressed Seed Oils: What the Term Means and Which Numbers Prove It
Cold pressing preserves flavour and minor components and gives up yield and shelf life in exchange. This guide sets out what the…
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Aflatoxin Management in Tree Nuts: Sorting, Sampling and What the Certificate Proves
Aflatoxin contamination in tree nuts is concentrated in a handful of kernels per tonne, which makes the sample plan more important than…
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What is the aflatoxin risk in spices?
Aflatoxins form when storage moulds grow on inadequately dried or badly stored material. Maximum levels are set in EU law and no…
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What are the moisture limits for dried mushrooms?
There is no EU commodity limit. Trade practice is around 10 to 13 per cent depending on species, with water activity around…
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What is essential oil content in dried herbs?
The volatile aromatic fraction, measured by hydrodistillation and reported in millilitres per 100 g on a dry basis. It is what the…
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What is the difference between acid value and peroxide value in sunflower oil?
Acid value and peroxide value in sunflower oil measure two kinds of damage: hydrolysis and oxidation. What each reveals and how to…