Top 9 Safest Methods to Remove Pesticides from Fruits and Vegetables

Sun Exposure: Sunlight helps break down pesticide residues on vegetables. By leaving the vegetables in the sun for 5 minutes, pesticide residues like organic mercury and organic chlorine can be reduced by about 60%. Before consuming, it is recommended to expose vegetables to sunlight for 7-10 minutes to remove a significant portion of the pesticide residues.

Warm Water Blanching: Heating at high temperatures can also help decompose pesticides. For heat-tolerant vegetables such as cauliflower, beans, and celery, wash them thoroughly and blanch in hot water for about 2 minutes. This reduces pesticide residue by 30%, and cooking at high temperatures can remove up to 90% of pesticide traces.

This method, widely used in Japan, involves using scallop shell powder to remove pesticides, break down impurities, and disinfect fruits and vegetables.

Scallop shell powder helps decompose and eliminate pesticide residues, growth hormones, preservatives, and parasites that adhere to the surface of fruits and vegetables. Additionally, it has a high pH (from 12.5 to 13), which is effective in killing most harmful bacteria such as those causing digestive issues, colitis, and streptococcus. It also creates a protective layer that prevents bacteria from entering, helping preserve the freshness of produce for longer.

Instructions: Dissolve 3g (1 teaspoon) of scallop shell powder in 2 liters of water and stir well. Place the fruits and vegetables in the solution and soak for 5 to 10 minutes. The impurities will gradually dissolve and separate, turning the solution cloudy with an oily layer floating on top (visible to the naked eye). Afterward, rinse thoroughly under running water.

Ultrasonic vegetable washer is a type of vegetable washing machine that uses ultrasound waves to create tiny bubbles which break down dirt, pesticides, and harmful chemicals stuck on food, ensuring food safety for the health of users.

The ultrasonic vegetable washer has the advantage of applying ultrasonic waves over 40 thousand times per second to clean dust, pesticides, and preservatives from the surface of fruits and vegetables. This ensures that the food is always clean, safe, and provides a healthy source of nutrition for your family. The product is internationally certified for its effectiveness in removing residual pesticides from vegetable leaves, allowing users to confidently consume the food. It is suitable for a wide range of fruits and vegetables in different sizes and comes in various models at affordable prices in the market.

Nutrition experts recommend that the best way to remove chemicals from fruits and vegetables is to soak and rinse them multiple times with clean water. It is ideal to rinse them at least four times to remove dirt and lingering chemicals. For this, you should use large bowls filled with water or rinse directly under running water several times.

Soak the produce in clean water for 15-30 minutes, then rinse under strong running water for at least 30 seconds per vegetable or fruit. During the soaking phase, you can use rice water to neutralize harmful chemicals from pesticides. Alternatively, warm water can help to “release” most toxins from the surface of fruits and vegetables.

According to a report by Professor Bajwa (2014) and Professor Satpathy (2012), the optimal soaking solution varies depending on the type of vegetable. While some vegetables can simply be soaked in clean water to remove pesticides, others require soaking in a diluted saltwater solution or adding half a lemon to effectively eliminate these chemicals.

For this method, use a 5% saltwater solution to soak the vegetables for 5-15 minutes, then rinse thoroughly with clean water. The saltwater soak has a low chemical concentration and does not affect pesticides or other harmful chemicals, but it can help address the psychological concerns of consumers. While it does not directly affect pesticides, the saltwater does kill E. coli bacteria that cause diarrhea.

Many homemakers have shared and continue to use rice wash water as a method to clean and detoxify fruits and vegetables because it contains B vitamins and other nutrients from the rice that dissolve in the water. It is especially recommended to use fermented rice wash water to soak vegetables, as it works more effectively. Not only can you use the fermented water to wash vegetables, but it can also be used for cleaning dishes and utensils even better. Be sure to rinse thoroughly with clean water to remove any lingering sour fermentation smell.

In addition to reducing the saltiness of dried fish, rice wash water is also effective in cleaning the slime and dirt from snails. Simply place the snails in a basin, add rice wash water and a few slices of chili, and soak for 1-2 hours. The slime will naturally come out in clumps. Rice wash water can also help eliminate the fishy odor from fish. Before soaking in rice wash water, make sure to wash the fish thoroughly under clean water, then soak them in a basin with rice wash water mixed with a little salt for 10-15 minutes, then rinse again with clean water.