How to keep walnuts fresh

In this brief guide, we will answer the question “How to keep walnuts fresh” with an in-depth analysis of whether or not how you can keep walnuts fresh. Moreover, we are going to discuss the recipe for walnuts.

How to keep walnuts fresh?

The following are some methods for keeping walnuts fresh:

  • Walnuts should be stored in a cool, dry place
  • Walnuts That Have Been Opened Should Be Properly Sealed
  • Refrigerate walnuts for up to six months

Walnuts should be stored in a cool, dry place:

Walnuts purchased in a sealed bag or container can be stored in the pantry, cupboard, or any other location away from direct sunlight or high humidity 1. Walnuts deteriorate faster in heat, so keep them away from any high heat source.

If you open the bag and want to save the walnuts you didn’t use, place it in an airtight canister or other containers. Some walnuts already come in airtight containers, which is fine. Walnuts should be fine at room temperature for up to three months if the container is properly sealed.

Walnuts That Have Been Opened Should Be Properly Sealed:

If the walnuts came in a bag, a twist tie won’t suffice this time. When walnuts are exposed to air, they lose their freshness and begin to spoil. Seal the walnuts in an airtight container to preserve their usefulness.

A jar or bowl with a lid, or a plastic bag with a ziplock, can be used. If you don’t close your container properly, you’ll be throwing away the walnuts in a week because they turn quickly. I always buy walnuts in a container that seals out the air when closed after opening.

Refrigerate walnuts for up to six months:

If you can avoid buying in bulk but don’t need to eat your walnuts for another couple of days, store them in the refrigerator. The fridge will keep them fresh and even nutritionally valuable.

Refrigerated walnuts will keep for up to six months 3. Remember to keep them in a tightly sealed container. Furthermore, avoid storing them near other foods with strong odors. Read on for more information on foods with strong odors.

How should walnuts be frozen?

The following are the ways to freeze the walnuts:

Place the walnuts in a plastic freezer storage bag. Remove any excess air from the bag. Write the date on the bag. Freeze the bag for up to a year.

A vacuum sealer is the most effective way to remove excess air from a plastic bag. They are one of those items that make you wonder how you ever lived without one before purchasing one. There are numerous low-cost options available on Amazon. Check out their current prices here, Vacuum Sealers.

If you don’t have a vacuum sealer, try squeezing as much air out of the bag as you can. Zip it up just enough to leave a small opening big enough for a straw. Suck out any remaining air with the straw. Remove the straw while also closing the opening.

How do you know If walnuts are bad?

The following are the signs to know that walnuts have gone bad;

  • Examine the walnut after you’ve shelled it. Check for any signs of mold or net formation. If there are any, throw them out.
  • Second, examine the nut to see if it appears healthy. If it appears dry, shriveled, or otherwise unappealing, it’s time to get rid of it.
  • The sniff test comes next in the process. Walnuts typically have a mild nutty aroma. They are rancid if they smell like used cooking oil or rancid oil.
  • While rancid nuts are generally safe to eat, their nutritional value may be reduced, and they taste bitter. As a result, in most cases, you should discard them.

Banana and walnut loaf cake:

The following are the ingredients that are needed to make banana and walnut loaf cake;

  • 100g walnuts
  • 125g softened unsalted butter plus extra for the tin
  • 125g soft light brown sugar
  • 2 eggs, beaten
  • 200g plain flour
  • 12 teaspoon cinnamon
  • 2 tsp baking powder
  • 3 medium ripe bananas, mashed


  • Preheat the oven to 180°C/fan 160°C/gas 4 and set aside. Place the walnuts on a baking sheet and roast for 8-10 minutes, or until darkened and toasty. Allow cooling slightly before chopping.
  • Butter a 900g loaf pan, then line it with a long strip of baking paper that extends past both ends to help you lift the loaf out later.
  • In a mixing bowl, cream together the butter and sugar for 2-3 minutes, or until light and fluffy. Mix in one of the eggs, followed by a spoonful of flour. Mix in the remaining flour, cinnamon, baking powder, bananas, three-quarters of the chopped walnuts, and a pinch of salt until thoroughly combined.
  • Spoon the batter into the prepared loaf pan and smooth the top with a spatula, then top with the remaining walnuts.
  • 40-45 minutes, or until a skewer inserted into the center comes out clean. Cool in the tin for 10 minutes before turning out onto a wire rack to cool completely before serving.

Other FAQs about Walnuts that you may be interested in.

Can you eat raw walnuts?

Are bitter walnuts safe to eat?

Can you eat black walnuts?

Can you eat walnuts with diverticulitis?


In this brief guide, we answered the question “How to keep walnuts fresh” with an in-depth analysis of whether or not how you can keep walnuts fresh. Moreover, we discussed the recipe for walnuts.