Stop Soaking Cauliflower in Baking Soda or Salt! Taipei Agricultural Market Reveals One Simple Method to Remove Pests and Pesticides Automatically

Cauliflower is low in calories and high in fiber, packed with protein and essential nutrients, and known for its cancer-fighting and antioxidant properties, making it a staple vegetable on many family dinner tables. A netizen recently shared a post on Facebook revealing a simple method to thoroughly remove insect eggs and dirt from cauliflower. In fact, Taipei Agricultural Products Marketing Corporation (TAPMC) and health expert Tan Dun-Ci have previously pointed out that many people soak vegetables in saltwater or baking soda, but this method is incorrect and may actually make vegetables dirtier.

Cauliflower often harbors pests and pesticide residues—so what’s the best way to clean it? A user posted in the Facebook group 'Home Cooking' that while cauliflower is a common dish in many households, its difficulty in cleaning has troubled many. He shared a cleaning method: first cut the cauliflower into small florets, place them in a plastic bag with water, seal the bag tightly, and shake it vigorously from side to side and up and down. Dust and insect eggs will quickly become visible and float out. Then, remove the cauliflower and blanch it—cleaning is complete.

After the post went viral, netizens responded with comments such as: 'After reading this, I realized I’ve been eating high-protein cauliflower without properly washing it—I only rinsed it briefly before cooking'; 'I’ve never washed cauliflower with visible bugs—maybe the pesticides are too strong, or maybe I need new glasses'; 'Cut into small pieces, peel the outer skin of the stem, and check while pulling out bugs—it takes less than 10 minutes. Soak in water for 10 minutes, then blanch, and there are almost no bugs left'; 'I can’t bring myself to buy it anymore—I give up as soon as I see bugs before cutting or soaking'; 'Salt removes bugs but makes you ingest more pesticides; actually, just soaking in clean water is enough'; 'Adding flour is good, but salt is not recommended at all—salt stabilizes pesticides, making them harder to wash off'; 'This cleaning process made me want to give up on this dish entirely, even though I used to love cauliflower'; 'I only dare to buy frozen cauliflower—there are too many bugs, it’s traumatizing'; 'I’ve already eaten thousands of them… it’s impossible to remove 100% of the bugs in cauliflower unless you sort them endlessly'.

Don’t use baking soda or salt to wash cauliflower! TAPMC teaches a 3-step method for thorough cleaning.

Tan Dun-Ci, a nurse from the Lin-Kou Chang Gung Memorial Hospital’s Clinical Toxicology Center, explained on the program 'Health 2.0' that there is absolutely no need to add salt or baking soda when washing cauliflower. Adding salt to washing water alters the osmotic pressure between water and vegetables, which may cause surface pesticide residues to be drawn into the vegetable’s interior—counterproductively increasing contamination.

Tan emphasized that numerous scientific studies, both domestic and international, have confirmed that the most effective and safest way to remove pesticides from fruits and vegetables is simply using 'clean, running water'.

Taipei Agricultural Products Marketing Corporation (TAPMC) also shared the correct 3-step method for cleaning cauliflower on Facebook. By following these steps, hidden dirt and pests can be effectively removed:

Step 1 [Rinse] Place the whole cauliflower under running water and rinse the surface thoroughly.

Step 2 [Shake in Water] Hold the stem firmly and rapidly move the entire cauliflower up and down in the water. Use the force and buoyancy of the water flow to wash out tiny insects hidden in the crevices of the florets, allowing them to float to the surface.

Step 3 [Cut and Final Rinse] Cut the cauliflower into appropriate sizes according to your cooking needs, then give it a final quick rinse under the tap.

TAPMC emphasizes that by following this simple 'rinse, shake, then cut and rinse' golden process, most hidden pests and pesticide residues can be effectively removed without damaging the vegetable’s nutrients, ensuring a healthy and safe meal for the whole family.

Full discussion available in the 'Home Cooking' group.