I was right!

I always soak my veggies in water and vinegar to get rid of bugs and stuff.

Removing Harmful Substances from Produce

'Some people are concerned that eating large amounts of fruits and vegetables may lead to an unhealthy consumption of pesticide and other farm-chemical residues. Vinegar can lend a hand here, too. Washing produce in a mixture of water and vinegar appears to help remove certain pesticides, according to the small amount of research that has been published. Vinegar also appears to be helpful in getting rid of harmful bacteria on fruits and vegetables.

To help remove potentially harmful residues, mix a solution of 10 percent vinegar to 90 percent water (for example, mix one cup of white vinegar in nine cups of water). Then, place produce in the vinegar solution, let it soak briefly, and then swish it around in the solution. Finally, rinse the produce thoroughly.'