Three rounds of testing show some bread products repeatedly return non-detect results, while others show measurable residues across batches.
A third round of independent testing of supermarket bread in New Zealand is beginning to reveal patterns that were not visible in earlier testing alone.
The testing, carried out by No More Glyphosate NZ, builds on two previous rounds and focuses on everyday bread products available on supermarket shelves. While all results remain within current regulatory limits, the latest findings add an important layer of context by allowing comparison across multiple batches of similar products over time.
In the most recent round, eight bread products were analysed. Two returned no detectable glyphosate, while six contained measurable residues.
On its own, that result is a snapshot. But when placed alongside earlier testing, the focus shifts from individual results to what happens when the same or similar products are tested more than once.
Some products—such as Tip Top Supersoft and Woolworths wheatmeal-style breads—have now returned no detectable glyphosate across all three rounds of testing. Others, including Burgen Superb Soy & Linseed and Vogel’s Original Mixed Grain, have shown detectable levels in multiple batches tested at different times.
What stands out is not simply that glyphosate can be detected, but that certain products appear to return similar outcomes across repeated testing.
“We’re not looking to prove a point,” the group said. “We’re simply measuring what’s there. What’s becoming clearer over time is that some products consistently return non-detect results, while others consistently show measurable levels. That raises a reasonable question about what’s happening upstream.”
All results remain well below New Zealand’s current maximum residue limits (MRLs) for glyphosate in wheat and grain products. From a regulatory perspective, these products are compliant. However, compliance does not necessarily mean absence—particularly in staple foods that are consumed regularly.
The findings begin to raise a broader, practical question.
If some products can consistently return no detectable glyphosate across multiple rounds of testing, what factors are contributing to that outcome—and why do others not show the same pattern?
At this stage, the group is not drawing conclusions about cause. Several variables may be involved, including how grain is grown, whether glyphosate is used prior to harvest, how grain is sourced and blended, and how it is processed during milling.
“This work is about building a clearer picture over time,” the group said. “One round of testing is a snapshot. Multiple rounds start to show patterns.”
The testing is independently funded through community support, with each sample costing over $400 to analyse. Continued testing will depend on ongoing public interest and funding.
Further testing across additional food categories is planned.
Image credit: Karolina Grabowska
So this means more imported rubbish to eat. This is why our food is going,over reaction to something we have been consuming for decades. Enjoy the China bread. While they kill off the last of the farmers with their lists of what to have in food!!