How to Boil Fresh Corn on the Cob

  1. 1

    Husk and clean the corn

    Remove the outer green husks and all the silky threads. Rinse under cold water. Break or cut cobs in half if they are too long for your pot.

  2. 2

    Bring a large pot of water to a full boil

    Use a pot big enough that the corn fits comfortably. Fill generously with cold water — you want the corn fully submerged. Bring to a rolling boil over high heat. Do not add salt — it toughens the corn kernels. Adding a tablespoon of sugar to the water enhances the sweetness.

  3. 3

    Add corn and boil 4–5 minutes

    Add the corn to the boiling water. Return to a boil and cook for 4–5 minutes for sweet corn that is tender but still has a slight bite. Very fresh corn from the farm may only need 3 minutes. Older corn may need 6–7 minutes.

  4. 4

    Test for doneness

    Pierce a kernel with a sharp knife or fingernail. It should be tender with a juicy pop. The colour should be bright, vibrant yellow. Remove immediately with tongs — overcooked corn becomes mushy and loses sweetness.

  5. 5

    Serve immediately

    Corn is best the moment it comes out of the water. Serve with butter, salt and pepper. Other classics: lime juice and chilli flakes, mayonnaise and cotija cheese (Mexican elote style), or herb butter.

Boiling Frozen Corn on the Cob

Do not thaw first. Add frozen cobs directly to boiling water. Cook for 8–10 minutes until heated through and tender. Frozen corn takes longer because it needs to both thaw and cook.

Timing cheat sheetFresh sweet corn: 4–5 min. Very fresh farm corn: 3 min. Older supermarket corn: 6–7 min. Frozen corn on the cob: 8–10 min. White corn varieties: same timing as yellow.

Alternative: Microwave Method (5 Minutes)

Leave corn in the husk. Microwave on high for 4 minutes per cob. Let cool 2 minutes, then cut the bottom off the cob and slide the husk and silk off in one clean motion — no messy silks. This is genuinely the easiest method.

Frequently Asked Questions

Most chefs say no — salt toughens corn kernels during boiling. Add salt after cooking. Adding a tablespoon of sugar or a splash of milk to the water instead can enhance sweetness and tenderness.
Fresh corn should have bright green husks, moist silks and plump, tightly packed kernels. Signs of age: dry or brown silks, yellowing husks, shrunken or mushy kernels, sour smell. Fresh corn is best eaten within 1–2 days of purchase — the sugars convert to starch quickly.