Add water and salt to a large pot or sauce pan. Heat over high heat and bring to a rolling boil.
Prepare an ice bath by setting out a large bowl filled with water and ice,
Add the beans to the hot water and cook for about 2-3 minutes or until the beans are bright green and crisp-tender.
Remove the green beans from the hot water and immediately transfer them to the iced water. Drain and use as desired.
Notes
You can serve the beans right after blanching or store them in an airtight container or resealable plastic bag in the refrigerator for up to 2 days. Blanched green beans can be stored in a freezer bag and freeze for up to 8 months.