The Problem
Worried about what's in your daily roti? You're not alone. Government monitoring has found that about 9–10% of wheat samples carry detectable pesticide residues, and roughly 1% exceed legal safety limits in India. Across all foods tested nationally in recent years, around 2–3% exceeded limits — meaning most wheat is compliant, but traces do exist. For people who eat wheat daily, even low levels can raise questions about long-term exposure.Pesticide residues are not unique to wheat — they can be found on fruits, vegetables, pulses, and other grains. But because wheat is a staple for hundreds of millions of Indians, its safety has a direct, large-scale impact on public health and consumer trust.
Why It Happens
On-farm use. Farmers often rely on pesticides to protect crops from insects, weeds, and fungal diseases. When used as per guidelines, residues usually stay within legal limits. But overuse, mixing multiple chemicals, or skipping the pre-harvest waiting period can lead to higher residues. Many small farmers lack formal training on safe handling, and sometimes use older, more toxic chemicals simply because they are cheaper or more accessible.Post-harvest and storage. Wheat doesn’t stop facing threats after harvest. In warehouses and grain silos, insects and molds can damage stock. To prevent losses, managers may use fumigants or contact insecticides on stored grain. While this protects food supply, it can also leave residues if not done with precision.
Regulatory limits. India sets Maximum Residue Limits (MRLs) under the Food Safety and Standards regulations, and these are periodically reviewed. However, enforcement and monitoring capacity are limited compared to the scale of production. Only a small fraction of wheat is tested each year, so contaminated batches can slip through.