4 Steps to Freezing Sweet Corn

Frozen sweet corn is a must-have in your freezer if you love summer. Here are four steps to freezing sweet corn. Don’t forget to blanch corn first! If freezing cooked kernels is too tricky, try canning the corn instead. Either way, frozen sweet corn is an excellent addition to your summertime menu. And if you can’t eat the whole thing in one sitting, freezing is an excellent alternative for last-minute meal preparation.

4 Steps to Freezing Sweet Corn

Must-do Blanching

Producing high-quality frozen maize necessitates blanching and then cooling in ice water. Before freezing, the natural enzymes in corn must be inactivated to avoid colour and nutrient loss and flavour and texture alterations. A heated blanching process inactivates these enzymes, and it is chilled to prevent the corn from becoming mushy from overcooking the starch.


I’ve learned the following when it comes to freezing kernels:

Step 1:

Instead of jars or other containers, I use quart-size freezer baggies because I can get a lot of air out of them with a straw and stack them neatly in the freezer.

Step 2:

I’ve tried a lot of different methods, such as using a standard cutting board, the tube cake pan approach, and specialty corn cob cutters, to try and reduce the mess while cutting the kernels from the cobs, but I always come back to my reliable over-the-sink cutting board with a drain/hole in one side. Since it’s over the sink, most of the debris is contained. As I cut, I can slide the kernels into the bowl by placing a massive bowl beneath the hole.

Step 3:

Corn should be packaged in freezer containers with a headspace of half an inch.

Step 4:

At or below zero degrees Fahrenheit, seal and freeze.

Eat within 8 to 12 months of freezing for the most excellent quality.

What is the Difference Between Sweet Corn and Field Corn?

In the US, sweet corn makes up just 1% of the corn cultivated.

In Iowa, “Field Corn” makes up 99 percent of the crop. Field corn is what Iowan corn growers refer to when they deliver their products, and it’s not the delicious sweet corn you could find in a can or on the cob.

The typical large, dented ears of yellow corn dried and harvested in the fall are known as field corn. Due to the unique dent on the kernel when the corn dries, it is known as “dent corn.”

Although “Field Corn” is primarily used for livestock feed, ethanol generation, and manufactured goods, a tiny percentage is processed for corn cereal, corn starch, corn oil, and corn syrup for human consumption. It is regarded as a grain.

People buy sweet corn in fresh, frozen, or canned forms, which is eaten raw as a vegetable. Sweet corn is picked when the kernels are young, as opposed to “Field Corn,” which is collected when the stalks are dried and fully developed.

How Can Sweet Corn be Used?

Vegetable sweet corn can be consumed in a variety of ways.

  • Many people boil or use it for cooking after roasting it over charcoal.
  • Several people also consume it raw.
  • Sweet corn is gaining popularity and can be used in various dishes, including pizza, salads, jams, special soups, creams, pastes, desserts, and syrup.
  • It can be consumed however you like. However, anything consumed in excess can be dangerous, so paying attention to how much sweet corn is consumed essential. 1 Before ingesting any herbal supplements, you must seek the advice of a licensed physician. Without first consulting a trained professional, never stop or substitute an ongoing modern medical treatment with an Ayurvedic/herbal preparation.

What are the Possible Applications of Sweet Corn for General Health?

Due to the numerous vitamins and minerals, it contains, sweet corn may have multiple health benefits. Below is a detailed explanation of sweet corn’s potential applications.

Potential Diabetes Benefits of Sweet Corn

Type 2 diabetics may benefit from resistant starch, which is present in corn. According to a study, resistant starch may help lower insulin and blood sugar levels that rise after eating. This might be the case because sweet corn absorbs slowly, stabilizing blood sugar levels. As a result, one benefit of sweet corn may be regulating blood sugar in people with diabetes.

Sweet Corn’s Potential Benefits for Digestion

Corn contains resistant starch, a type of fibre that is difficult to break down (or digest). Therefore, eating maize may be advantageous since it aids in the uptake of minerals, may function as a prebiotic (may promote good bacteria that help in digestion), may aid in the thickening of feces, and may facilitate their simple passage. It might also be beneficial for easing diarrheal symptoms. Consuming sweet corn may therefore be helpful for issues relating to the stomach.

Potential Uses of Sweet Corn for Obesity

A significant study on nurses in the US revealed that consuming more whole grains, mainly corn, as part of a fibre-rich diet may help individuals maintain a healthy weight. Additionally, it was found that replacing carbs in the diet with resistant starch reduced fat storage (present in corn). This would suggest that it helps people lose weight. So, it is possible eating sweet corn will help you lose weight.

Additionally, the following health advantages of sweet corn may apply:

  • When treating neurodegenerative disorders (diseases caused by damage to neurons), such as Alzheimer’s disease, sweet corn may be helpful.
  • It has beta carotenoids, which improve vision and turn into vitamin A. Additionally, it may shield against ocular degenerative illnesses (macular degeneration).
  • It may have the ability to treat cancer. To back it up, though, an in-depth study is required.
  • Although studies demonstrate the advantages of sweet corn in many situations, they are insufficient, and further research is required to determine the full scope of sweet corn’s health advantages.

What are the Adverse Effects of Consuming Sweet Corn?

Sweet corn side effects are unknown because there aren’t enough credible reports to back them up. Sweet corn is safe to eat in moderation because it is a vegetable. However, you must avoid it if you have a known allergy to sweet corn. If you experience any symptoms after consuming sweet corn, see a doctor and get it checked out.

No particular safety measures should be followed when eating sweet corn. You should pay attention to the sweet corn’s quality and freshness and whether it has been spoiled. Sweet corn that has gone bad should not be consumed because it could be unhealthy.

How to Preserve Sweet Corn?

Entire Corn Kernels are Frozen

Pick ears with ripe, soft kernels and thin and delicious milk. Remove the silk and husks. Corn should be washed with cool running water—boiling water for 4 minutes to blanch the ears. Quickly cool in ice water, then drain. Cut kernels from cob at a depth of roughly two-thirds their size. (To prepare cream-style corn, cut the kernels roughly in the middle, and then use the back of the knife to scrape the cobs clean of fluid and kernel hearts.) Use a bundt cake pan to catch the ground kernels and keep the corn cob steady in the center. Corn should be placed in freezer containers with a headspace of 1/2 inch. The container should be sealed, date-stamped, and frozen. For optimal quality, use frozen corn within 8 to 12 months.

Corn on the Cob frozen

For small, medium, and big ears, the blanching duration should be increased to 7 minutes, 9 minutes, and 11 minutes, respectively. After blanching the corn in ice water for the same time, please remove it from the water and pat dry with paper towels. Wrap each ear tightly in moisture- and vapour-proof film before placing it in a plastic freezer bag. The corn should be packaged, dated, and frozen. Limit the food you freeze per cubic foot of freezer space to no more than 1 quart (2 to 3 pounds) per day. Thirty quarts of food can fit in one cubic foot.

Preserving Corn

Because the corn has a low acid level, pressure canning is the only method that can be used safely.

Whole-kernel Corn Preservation

Choose the best quality maize for eating fresh or ears with slightly immature kernels. Browning may occur when some sweeter kinds or too-young seeds are canned. White sweet corn contains fewer nutrients than yellow or bicolor and can become a touch grey after canning. Before canning, considerable amounts can be a little bit to verify the colour and flavour. Remove the silk and husks. Corn should be washed with cool running water—3 minutes of hot water for blanching. Cut the corn from the cob about two-thirds down the kernels. For this project, an electric knife works wonderfully.

What is the Shelf Life of Cooked Corn on the Cob?

The anticipated shelf life of corn on the cob that has already been cooked is different from that of corn that is still fresh and uncooked. Prepared corn should be consumed within the following four to five days, just like most other cooked vegetables.

Store your cooked corn in the refrigerator in an airtight bag to ensure it lasts as long as possible (you can also wrap it tightly in saran wrap if you prefer). According to chefs, plucking the corn’s kernels from the cob and only eating the seeds may extend the edible portion’s shelf life.

How Long does Freshly Cooked Corn Remain Fresh?

If you have any cooked corn on the leftover cob, you may keep it in the fridge for three to five days if it is well wrapped. Please put it in a microwave-safe dish, cover it with a wet paper towel, and reheat it there. Turn the corn after every increment of 20 seconds of heating.

Alternatively, you may boil some water on the stove, add the corn ears, and cook them for around three minutes. This will slightly overcook it, but it will still be delicious. B boiling eliminates the chance of kernels bursting or turning hard while microwaving.

Corn can also be preserved by freezing and canning.

How do You Know if Corn is Bad?

You could notice that some kernels have turned brown when you remove the uncooked corn from the fridge. This is not a major worry, but it does show that the temperature of your refrigerator was a little bit too warm for corn.

Chop the brown kernels off and cook the corn as usual as long as there is no foul smell or slime. Your corn on the cob should be thrown away if any of these symptoms appear:

  • Slimy, moldy appearance and sensation
  • Rotten, moldy odor
  • Corn should not be black, mushy, or stinky like any vegetable.

What Takes Place When You Eat Bad Corn?

As with any food, you are eating contaminated corn increases your risk of developing food poisoning symptoms like nausea, vomiting, and diarrhea. It is also important to note that many people have corn allergies, and eating fresh maize may cause you to suffer these if you are one of the symptoms.

Overall, common sense tells us to make an effort to eat correctly cooked, fresh, and clean food. Always store corn properly, consume it quickly, and comprehensively prepare it.


You can also freeze sweet corn if you plan on using it soon. It’s possible to store the kernels for up to six months if you freeze them properly. The sweet corn can last for up to four months in the freezer. When defrosting, run the corn kernels through cold tap water. Drain the corn thoroughly afterward and store them in the freezer.