How to Store Flour Long Term: 4 Common Traps and How to Avoid Them – Everything You Need to Know

Whether you’re a dedicated survivalist preparing for long-term scenarios or just someone living life day by day, we all share a fundamental need: we must eat.

Food and water are vital for survival. The survival rule of threes states that a person can survive only three days without water and three weeks without food. This fact is particularly crucial for survivalists who prepare for scenarios where access to food might be limited. Hence, many survivalists stockpile water and non-perishable food.

In addition to storing water and food, some survivalists build greenhouses to ensure a steady supply of fruits and vegetables. A common non-perishable food item among survivalists is Flour.

Flour, a basic yet versatile pantry staple, is essential for making various delicious foods such as cakes, bread, and snacks. Its versatility is why survivalists often store it in large quantities.

Flour, while non-perishable, demands proper storage to avoid spoilage. This guide focuses on identifying and correcting common storage mistakes, ensuring your flour remains fresh and usable. Keep reading for valuable insights!

The human body relies on food and water for survival, with the rule of threes indicating a three-day limit without water and a three-week limit without food. Such facts are crucial for survivalists preparing for scenarios where access to food might become challenging. Consequently, survivalists often stock up on water and non-perishable food items, including flour.

In addition to stocking essentials, some survivalists construct greenhouses to secure a steady supply of fruits and vegetables. Among the non-perishable items, flour stands out due to its versatility and importance in creating various delicious foods like cakes, bread, and snacks. This is why it’s a common item in the survivalist’s pantry.

Despite its non-perishable nature, flour can spoil if not stored correctly. This article is designed to pinpoint the storage errors often made with flour and provide strategies to avoid them, ensuring your flour stays in top condition. Let’s dive in!

Common Mistakes in Storing Flour and Practicable Solutions to Avoid Spoilage

How to Store Flour Long Term

Store Flour in a Cold Place

Store flour in a cold environment to maintain its freshness. Flour, containing oils and natural compounds, remains stable in cool conditions. However, exposure to heat or humidity can cause the flour to become rancid, ruining the taste and odor of baked goods.

For long-term storage, place flour in a fridge or freezer. This environment inhibits bacterial growth and prevents rancidification. If fridge or freezer space is limited, store flour in your garage or another cool area of your home, below room temperature.

Before storing flour in a cool place, transfer it from its original paper packaging to an airtight container. This step is crucial to maintain the flour’s quality.

Storing Flour by Preventing Oxygen Exposure

Use Airtight Packaging for Flour

Oxygen exposure is a major factor in flour rancidification. Oxygen can react with elements, causing deterioration, as seen in rusted iron or browned apples. In flour, oxygen activates dormant yeast, mold, fungus, insect eggs, and bacteria, leading to spoilage.

To avoid this, store flour in an oxygen-free environment. Freeze or microwave flour before storing to kill any pre-existing insect eggs or bacteria. Suitable storage options include vacuum sealer containers, airtight containers, mason jars, containers with oxygen absorbers, and mylar bags. This approach ensures the flour remains fresh and free from unwanted organisms.

Learn how you can better store your food items HERE.

Store Flour Independently

Never store flour next to chemicals or other food items. Flour easily absorbs odors and flavors from its surroundings. If stored with items like meat, fish, pepper, or onions, especially in a freezer, your flour and baked goods will inherit these smells.

Storing flour near chemicals is far more hazardous, posing a risk of food poisoning. Always separate food from cleaning and other chemicals. Keep flour isolated to prevent any contamination.

Storing Flour in Darkness is Crucial

Avoid storing flour in lit environments. Light causes oxidation, leading to spoilage and rancidification. It can also warm the flour, creating a breeding ground for bacteria and fungus. If you use a freezer for storage, the darkness there is ideal.

If a fridge isn’t an option, store flour in airtight bags within food storage containers. Ensure these containers are in a cool, if not cold, location to avoid heat-induced spoilage.

Check out

Best Martial Arts for Self-defense and Survival–Our Top Picks
How to Tell if Ice is Safe to Walk On: Important Guide
How To Use A SAM Splint: Common Techniques (with pictures)!


Survival depends on having enough food, and survivalists must ensure they stockpile plenty, especially if their worst fears materialize. Flour, a versatile staple capable of creating pastries, cakes, bread, and snacks, ranks high on their preference list.

However, buying flour is only half the battle; proper storage is crucial to extend its shelf life for years. This article highlights key mistakes to avoid when storing flour.

But remember, it’s wise to consult professionals for the best storage methods tailored to your home. While flour is generally non-perishable, improper storage can lead to spoilage, rendering it sour or, in the worst case, inedible.

We trust this article has been informative. Should you have any questions, don’t hesitate to engage with us in the comments section below.

Find the complete step-by-step survival guides on our website.


  • Amanda Jennings

    Amanda Jennings was born and raised in Calgary, Alberta, Canada, and always enjoyed her youth’s camping trips. Over time, she developed an interest in survival, martial arts, firearms, and survival gear. Even though she was made fun of by other girls at school because of her ‘tomboyish’ ways, it did not bother her. She developed a more substantial interest in survival and became a public speaker on the topic. Amanda receives invitations from museums to speak about the case of survival. She also works at a camping and outdoor store in Calgary and has a strong interest in space and SciFi.

    View all posts