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The delicious taste of fresh corn makes the end of summer and the beginning of fall a much sweeter transition. Also known as parboiling, blanching involves scalding vegetables in boiling water or steaming for a short time. Blanching cleans the surface of dirt and organisms, brightens the corn’s color, and helps slow the loss of vitamins. [1] Follow these simple steps on how to blanch corn in order to tenderize it for eating, prepare it for other cooking methods, or freeze it for future use.

Method 1
Method 1 of 4:

Blanching Corn on the Cob in Boiling Water

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  1. [2]
    • Remove husk from corn completely. Peel down the outer green and leafy covering from the corn. Discard husk or compost it.
    • Peel off and remove the silk from the corn. The grassy, hair-like strands can be pulled off by hand or with a soft vegetable brush, but don’t worry if you can’t remove every last one, they can be easily cleaned off after cooking.
    • Break off any excess stalk from the ear of corn. If more than an inch or two of fibrous stalk remains at the bottom of the ear, you can snap off the rest. Personal preference dictates how much stalk you wish to leave on, from a few inches to none at all.
    • Rinse corn to remove any dirt particles or excess silk.
    • Select a pot that is large enough to completely cover all of the corn you plan to blanch with water.
    • Place corn in pot.
    • Fill pot with cold, clean water, using roughly one gallon of water for every two to three ears of corn. Allow for a few extra inches of water to remain above the corn, and three to four inches from the water line to the lip of the pot.
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    • Turn heat to high and allow water to come to a boil.
  2. [3]
    • If you have small ears measuring one and a 1/4 inches in diameter, boil for seven minutes.
    • If your corn is medium sized and measures one and a 1/4 inches to one and 1/2 inches in diameter, boil for nine minutes.
    • And if your ears of corn are large, measuring over one and 1/2 inches in diameter, boil for 11 minutes.
    • Fill a large bowl or sink with cold water and ice to create ice water bath.
    • Carefully remove corn from boiling water using kitchen tongs.
    • Submerge corn in ice water bath. Change water periodically if water temperature rises above 60Ëš F (15.6Ëš C).
    • If your corn is fresh and tender it may be ready to eat or you can further cook the corn by roasting it in the oven or by cooking the kernels with another method.
    • To freeze the corn, place entire blanched ears in freezer-proof bags or containers. [4]
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Method 2
Method 2 of 4:

Blanching Corn on the Cob with Steam

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    • Remove husk from corn completely. Peel down the outer green and leafy covering from the corn. Discard husk or compost it.
    • Peel off and remove the silk from the corn. The grassy, hair-like strands can be pulled off by hand or with a soft vegetable brush, but don’t worry if you can’t remove every last one, they can be easily cleaned off after cooking.
    • Break off any excess stalk from the ear of corn. If more than an inch or two of fibrous stalk remains at the bottom of the ear, you can snap off the rest. Personal preference dictates how much stalk you wish to leave on, from a few inches to none at all.
    • Rinse corn to remove any dirt particles or excess silk.
  1. [5]
    • Choose a pot large enough to blanch two to four ears of corn at a time in a single layer depending on the size of your pot.
    • Place a metal steamer basket or mesh strainer at the bottom of the pot.
    • Add roughly two to three inches (five to seven cm) of water to the pot. Use enough water that the surface of the water is roughly an inch ( two and a 1/2 cm) below the steamer basket or strainer.
    • Fill a large bowl or sink with cold water and ice to create ice water bath.
    • Remove corn from pot using tongs or by carefully lifting steamer basket from pot.
    • Submerge corn in ice water bath. Change water periodically if water temperature rises above 60Ëš F (15.6Ëš C).
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Method 3
Method 3 of 4:

Blanching Whole Kernel Corn in Boiling Water

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  1. Use roughly one quart (one L) of water for each cup (250 mL) of kernels.
  2. [6]
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Method 4
Method 4 of 4:

Blanching Whole Kernel Corn with Steam

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    • Choose a pot large enough to blanch one to two cups (250 to 500 mL) of whole kernel corn at a time.
    • Place a metal steamer basket or fine mesh strainer at the bottom of the pot.
    • Add roughly two to three inches (five to seven cm) of water to the pot. Use enough water that the surface of the water is roughly an inch ( two and a 1/2 cm) below the steamer basket or strainer.
  1. [7]
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How Do You Cook Corn On The Cob?


Community Q&A

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  • Question
    Do corn kernels need to be dry before freezing?
    Community Answer
    You don't have to dry the corn but when freezing corn on the cob, drying helps to keep ice crystals from forming.
  • Question
    I blanched my corn and stored it in a freezer bag. When I get ready to eat it, how should I prepare it?
    Community Answer
    I would put the frozen corn in some warm water to thaw it out. You could then heat it up in the microwave or on the stove top, use it in a dish, etc.
  • Question
    How long can I keep corn on the cob in a freezer?
    Community Answer
    Blanched corn will keep for 3 to 5 months when frozen. Any longer and the quality will deteriorate.
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      Tips

      • Before buying corn, gently feel the kernels through the husk to find ones that are plump and plentiful. This also avoids the unnecessary trend of peeling husks before purchase. [8]
      • Choose corn that has bright green husks and yellow silk for the freshest ears. [9]
      • When purchasing corn, avoid ears that have small brown holes towards the top of the husk, as they are likely due to worms or some other undesirable infestation.
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      Warnings

      • Carefully remove lid from boiling or steaming water to avoid steam burns or scalding water splashes.
      • Use oven mitts or hot pads and long tongs when removing corn from boiling or steaming water to avoid burns.
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      Things You’ll Need

      • Corn, on-the-cob or whole kernels
      • Ice
      • Large cooking pot
      • Large food-safe bowl
      • Metal strainer or steamer basket
      • Kitchen tongs
      • Oven mitts or hot pads
      • Soft vegetable brush


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