You’ll usually want to boil corn on the cob for about 3–7 minutes once the water is at a rolling boil, depending on how tender you like it and whether it’s fresh or older.

Quick Scoop

  • Very fresh sweet corn: 2–3 minutes for crisp-tender kernels.
  • Standard fresh corn: 3–5 minutes for juicy, tender corn.
  • “Set a timer” method: many cooks use exactly 5 minutes for consistent results.
  • Slightly older or larger ears: 5–7 minutes to soften them a bit more.

Simple step‑by‑step

  1. Shuck the corn and remove as much silk as you can.
  1. Bring a large pot of water to a full boil.
  2. Add the corn, making sure it’s submerged, then return the water to a boil.
  1. Start timing once it’s boiling again: usually 3–5 minutes, or up to 7 if you want softer kernels.
  1. Take out an ear and pierce a kernel; if it’s tender and juicy, it’s done.

A popular “no‑stress” variation is to add the corn to boiling water, cover, turn off the heat, and let it sit in the hot water for 10–30 minutes; this keeps it at a steady doneness while you finish the rest of dinner.

Mini tip: Overboiling (like 15–20 minutes) tends to make corn mushy and less sweet, so staying in that 3–7 minute window once the water’s boiling is the safest bet.

Information gathered from public forums or data available on the internet and portrayed here.