Fresh corn often comes in plastic trays that are perforated for ventilation. The trays are sometimes arranged in 12 per carton for retail stores, but other packaging methods can be used for wholesale. Some supermarkets sell baby corn in glass jars, which usually cost more but are often preserved in a brine solution. When it is canned, the corn is usually in either 15 or 20 ounce (about 425 or 567 gram) packages, while 108 ounce (about 3.06 kilogram) containers are often used for exporting baby corn.

Choosing baby corn is generally based on freshness. Some varieties of corn, however, have more sweetness than others. The nutritional value is mostly the same for all of them, and similar to tomato, cabbage, and cauliflower. Baby corn grows in moist soil in areas where rainfall is abundant, and is generally harvested within a few days of emerging. Pesticides are usually not applied to the crops, so there is typically no concern about consuming harmful substances when eating the corn.

You can choose the type of baby corn based on whether it is for personal consumption, you run a food store, or work as an exporter. The size, type, and labeling are usually good for determining which is best. Factory operators can decide what to use by selecting the best grade for production.