Things You'll Need
Plastic freezer bags
Hazelnuts are simply the nuts, or fruit, that grow on the hazel tree. According to LearningInfo.org, these nuts are also known as filberts, and they contain vitamins A and B, various minerals and high amounts of vitamin E. Hazelnuts are mostly used for making flavorings, oils and foods, such as cookies, breads and cereals. But before consumption or storage, fresh hazelnuts should be processed for best results.
Fill an onion sack about half full of hazelnuts and lay the sack on a screen-bottomed tray. Spread the hazelnuts out in the onion sack so that they form a single layer by gently running your hand over the onion sack.
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Set the tray of hazelnuts in direct sunlight or above a furnace or radiator for approximately three days or until the hazelnuts are dry. Hazelnuts should be dried at a temperature of approximately 95 to 105 degrees F. The hazelnuts are dry when the color of the kernels change from white to a creamy color.
Remove the hazelnuts from the onion sack and place them in freezer-safe plastic bags. Store the nuts in the freezer at a temperature of approximately zero degrees until you are ready to use them.
Prepare the hazelnuts for consumption by placing them on a baking sheet and putting them in the oven at a temperature of 275 degrees F for about 20 to 30 minutes.
Remove the hazelnuts from the oven and rub them with a rough cloth while they are still warm to remove the roasted skins. Use the roasted nuts in your favorite recipe.
Store unused roasted nuts in a plastic freezer bag in the refrigerator or freezer for up to three months.