Sealed feed storage container in a coop — how to store chicken feed properly

How to Store Chicken Feed: Keeping It Fresh and Pest-Free

Kourtney Dubay

Good feed is an investment. Bad storage turns it into a liability — fast.

Moisture, heat, pests, and time are the four enemies of fresh feed. Here's how to beat all of them.

Why Feed Storage Matters

Fresh-milled feed like what we carry from Heim Milling, Luxemburg's Feed Service, and Famo Feeds is better than warehouse feed precisely because it hasn't been sitting around. But once that bag is open, the clock starts ticking. Improper storage leads to:

  • Mold and mycotoxins — invisible but dangerous, especially in humid Minnesota summers
  • Nutrient degradation — vitamins and fats break down over time, especially when exposed to heat and light
  • Pest infestation — mice, rats, and insects can contaminate an entire bag overnight
  • Palatability loss — stale feed gets ignored by your birds, leading to waste and underfeeding

The good news: proper storage is simple and inexpensive.

The Golden Rules of Feed Storage

1. Use an Airtight, Hard-Sided Container

The single most important upgrade you can make. A galvanized metal trash can with a tight-fitting lid is the classic solution — it's rodent-proof, moisture-resistant, and inexpensive. Plastic bins work too, but choose thick-walled containers that rodents can't chew through.

What to avoid: Leaving feed in the paper bag it came in. Paper bags are not rodent-proof, not moisture-proof, and not airtight. They're packaging, not storage.

Sizing tip: A standard 32-gallon galvanized can holds approximately one 50 lb. bag of feed with room to spare. If you're storing multiple feed types, use separate labeled containers.

2. Store in a Cool, Dry Location

Heat and humidity are feed's worst enemies. Aim for:

  • Temperature: Below 70°F if possible — a garage, shed, or basement is ideal
  • Humidity: Low and consistent — avoid areas that get damp in rain or experience condensation
  • Light: Out of direct sunlight, which accelerates fat oxidation and vitamin breakdown

In Minnesota, this means your storage setup needs to handle both humid summers and freezing winters. A well-insulated outbuilding or garage works well year-round.

3. Keep Feed Off the Ground

Never store feed directly on a concrete floor. Concrete wicks moisture, and that moisture transfers to your container and eventually your feed. Use a wooden pallet, rubber mat, or shelf to keep containers elevated at least a few inches.

4. Rotate Stock — First In, First Out

Always use older feed before opening a new bag. When you restock, move existing feed to the front and put new bags behind it. This prevents feed from sitting at the bottom of a container for months while you work through newer stock on top.

5. Buy What You'll Use in 4–6 Weeks

Fresh-milled feed is best used within 4–6 weeks of milling for optimal nutrition and palatability. Buying in bulk saves money, but only if you can use it before it degrades. For most backyard flocks, one or two 50 lb. bags at a time is the right cadence.

Exception: If you have a large flock or multiple species, buying more makes sense — just make sure your storage is airtight and conditions are right.

Pest-Proofing Your Feed Storage

Rodents are the #1 feed storage pest — and they're relentless. A mouse can chew through a paper bag in minutes and contaminate an entire supply with droppings. Here's how to keep them out:

  • Galvanized metal containers are the most reliable rodent barrier — mice and rats can't chew through them
  • Tight-fitting lids are non-negotiable — bungee cords or locking lids add extra security
  • Clean up spills immediately — loose feed on the floor is an open invitation
  • Don't store feed near nesting material — hay, straw, and bedding stored nearby attract rodents looking for both food and shelter
  • Inspect regularly — check containers weekly for signs of chewing, droppings, or moisture

For insects (grain weevils, moths), the same airtight container approach works. Freezing a new bag of feed for 48 hours before storing can kill any eggs already present in the grain — a useful trick if you've had weevil problems before.

🐭 Rodent Control: Don’t Let Pests Get to Your Feed First

Even with airtight containers, rodents will try. Having traps in place around your feed storage area is the most reliable way to catch problems early — before they become infestations.

🛒 Shop It: Rodent Control

  • Pro-Ketch Live Mouse Trap — A multiple-catch live trap with a clear lid so you can monitor activity without opening it. No chemicals, no poisons, no re-setting. Low-profile design fits easily along walls and under shelving. Great for catching and releasing, or for monitoring whether you have a mouse problem before it gets out of hand.
  • TOMCAT Mouse Snap Trap, 2-Pack — The reliable classic. Fast, effective, and easy to set. Place along walls near your feed storage where mice travel. Replace bait every few days if traps aren't triggering.
  • TOMCAT Rat Snap Trap — Sized for rats, which are a bigger problem in rural and semi-rural settings. If you're seeing larger droppings or chew marks on containers, step up to the rat trap. Place near entry points, along walls, and behind storage containers.

Placement tips:

  • Set traps along walls and in corners — rodents travel along edges, not open floors
  • Place traps perpendicular to the wall with the trigger end facing the wall
  • Check and reset daily for best results
  • Keep traps away from areas where your birds can access them

Signs Your Feed Has Gone Bad

Don't feed it if you notice:

  • Musty or sour smell — mold is present
  • Clumping or caking — moisture has gotten in
  • Visible mold — discard immediately; don't try to salvage
  • Insect activity — weevils, moths, or larvae in the feed
  • Your birds refusing it — they often detect spoilage before you do

When in doubt, throw it out. The cost of a bag of feed is far less than a sick flock.

A Note on Hemp Bedding and Feed Storage

If you're using the deep litter method with FLAX FARMS Hemp & Canola Blend, store your bedding the same way — in a dry location, off the ground, away from moisture. Hemp bedding is highly absorbent, which is great in the coop but means it will pull moisture from the air if stored improperly.

🛒 Shop Our Locally Milled Feed

The best storage in the world starts with quality feed worth storing. All of our feed is sourced from Minnesota mills and stocked fresh on a regular rotation.

Questions about feed freshness or how much to buy for your flock size? Contact us at BloomingtonFarmAndFeed.com — we're happy to help.

Back to blog