Avoiding Cross Contamination Challenge Processing samples form an integral part of the registration pathway for pesticides, but have you ever stopped to consider how laboratories go about this vital step? Imagine trying to skin a melon that has already been frozen for transport without contaminating the flesh inside the melon with any pesticide residues that may be on the skin. Cross contamination of residues must be avoided at all costs, as the laboratory routinely analyses residues down to 0.01 mg/kg, an amount which is equivalent to one second of time in three years and four months. Attempting to hold a large round object steady to take the outer skin layer off while not touching the inside flesh is harder than it sounds and extremely time consuming. Always up for a challenge, we went o

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