No matter whether you buy organic or conventionally grown food, you still want to wash it. This is the way I wash my fruits and veggies because this will remove some of the pesticides and herbicides from your food. Even though I buy organic food, no food is really clean these days, even organic.
I put the fruit or veggie in a bowl of water and put about a tablespoon of lemon juice and a teaspoon of salt. I swish the produce around in the water for about 30 seconds to a minute. You can leave it longer, but you don’t have to. I drain the bowl and then fill it with fresh water and wash the produce again. You will like the way this plumps up your produce if it is a bit weepy.
Nothing I know of will remove all toxins. We just do the best we can.