Is there an assessment aid for evaluating the analysability of raw materials?

The following assessment aid provides an overview of the feed and raw materials that can and cannot be tested. The responsible analysis laboratory is also consulted about the analysability of feed and raw materials.

May a certificate be awarded if there are positive GMO analysis results in a business and it has been found that the feed or raw materials in question had already been delivered before the analysis results were available?

First it must be taken into consideration which measures the business has introduced following the positive analysis results (Were there direct and long-term measures? Evaluation of the analysis results and assessment of the process?). If no concrete and effective measures were taken, that would be a reason not to issue a certificate. Corrective measures must be taken and their efficiency must be proven through analyses. A follow-up audit is to be carried out by the certification body if it is necessary to evaluate the corrective measures.


Farmers must take and store a reference sample for each risk-prone feed. Does the farmer also have to take and store reference samples of VLOG-certified feed or feed certified according to a standard recognised as equivalent by VLOG?

Farmers that purchase only risk-prone feed that is VLOG-certified (or certified according to a standard recognised as equivalent) are exempt from the requirement of drawing reference samples from incoming feed.

May the feed business provide the reference samples for risk-prone feed directly together with the supplied feed (e.g. in the event that the farmer is not present on the premises)? (updated on 02.11.2018)

In VLOG-standard it is not required for the supplier and the client to take a sample of the feed together. So, it is possible for the deliverer to provide the reference sample. Please note, that in this case the farmer takes the responsibility for the process and has to decide if he wants to relinquish the security of a joint sampling.

May feed analyses from the feed manufacturer be taken into account? (updated on 02.11.2018)

The results analysed by VLOG-recognised system participants or those certified according to an equivalent VLOG-recognised standard may be taken into account by the customer. This is possible, if the samples were taken from the specific batch delivered to the customer and if they have been analysed according to the requirements of the VLOG-standard.

How are positive GMO feed analysis results to be handled? (updated on 02.11.2018)

Positive GMO analysis results of feed are to be handled according to Annex V of the VLOG Standard.


What does the required annual number of analyses in the incoming goods relate to on the stage Food Processing/Preparation?   

The number of samples (between 2 and 12) per year relates to raw materials used in the VLOG-production.

A processing facility that produces “VLOG” cheese, is put into risk category 2 (12 analyses per year necessary). The risk assessment reveals, that only the paprika extract used in the cheese has to be analysed. Does the paprika extract have to be analysed 12 times if no other raw materials relevant for the analysis are used? (updated on 04.10.2019)  

The business must spread the 12 analyses over all risky raw material that can be analysed on GMO. If this only concerns the paprika extract, this is the only material, that has to be analysed.
The number of samples can only be reduced, if the number of batches received in the audit period is smaller than the minimum number of samples of 12 (e.g. 5 batches, that lead to 5 analyses).