How to Kill Weeds with Salt and Vinegar (5 Steps)

1. Pour 1 cup of table salt into a kettle.
2. Add 2 cups of white vinegar into the kettle and stir to mix.
3. Heat the kettle on the stove on a medium setting. Continue doing so until the mixture boils. Turn off the stove.
4. Using pot holders or an oven mitt, take the kettle to the driveway, sidewalk or area that has the weeds you want to kill.
5. Pour the vinegar and salt mixture over the weeds slowly, being sure to cover all of the weeds. The combination of vinegar and salt, as well as the boiling-hot temperature of the mixture, will kill them.