Ways to remove chemical residues in vegetables? Find out how!

Ways to remove chemical residues in vegetables? Find out how!


  1. Finger Pepper for Sinigang

“Siling haba” or Finger Pepper is among the veggies which is usually sprayed with most chemicals because they are very prone to insects and pests. Most often than not, farmers tend to spray chemicals in this kind of crop just before the harvest season so the probability of these having chemical residue is very high. So be sure to follow the steps above to wash off the residues.

  1. Winged Bean

Another veggie which is really exposed to these chemicals is the winged bean. It is highly nutritious, and can go with any other vegetables in a particular dish. Insects and pests also love this crop as much people love it, so yes, this crop is being sprayed regularly with chemicals. This winged bean is “sigarilyas” in the Filipino language.

  1. Eggplant

This crop is very susceptible to stem and fruit borers; and because of that, farmers tend to spray chemicals in this frequently to avoid infestation. So there is a great possibility that there’s a lot of residue in that vegetable.

  1. Salad Greens

Dr. Calumpang also suggested that salad greens or those leafy vegetables like lettuce may be exposed to insecticide so it’s really best to wash them thoroughly to remove the residue.

  1. Cauliflower

Like all other vegetables mentioned above, this cauliflower is not an exception to pests and insects, to preserve the health of the crop, farmers tend to spray chemicals on it. So residues cannot be avoided.

6. Conventionally Grown Vegetables in the Market

A wide variety of pinakbet-type vegetables in the market. Most likely a lot of them were produced the conventional farming way. That means the farmers must have sprayed their plants with chemical pesticides to protect them from pests and diseases. In the process, if the plants were sprayed just a few days before harvest, the vegetables could be loaded with chemical residues

Thanks to one Dr. Calumpang and her team for introducing to us these easy steps on how to remove this toxic chemical residues on our vegetables. By the way, Dr. Calumpang, who is assistant to the UPLB vice chancellor for research and extension, specializes in chemical ecology which is the study of chemicals that affect insect behavior. Her studies, in collaboration with other researchers, have already resulted in pest control techniques that can be used to protect crops without the use of chemical pesticides.