How to Store Powdered Milk So It Lasts for Years

Powdered milk is one of the most practical foods you can add to your pantry, whether for everyday use or for emergency food storage. It’s lightweight, shelf-stable, and surprisingly versatile for baking, cooking, and everyday use. Whether you’re preparing for emergencies, reducing grocery trips, or simply want a reliable pantry backup, powdered milk is worth understanding, including how to store it properly and how to use it in everyday recipes.

Having powdered, or dried, milk on hand is extremely handy whenever I run low on regular milk. Back in the day, when my kids were drinking cold milk by the gallon, having a backup ready to go was a life-saver. You can even turn it into buttermilk or evaporated milk with some tricks.

In fact, I do still have a lot of powdered milk in my pantry. Although we don’t drink much milk now that my kids are older, I do use it for baking and in other recipes. I’ve stocked up on quite a bit of it, with a can or two of milk alternatives to be prepared for recipes and maybe, someday, grandkids.

What is Powdered Milk?

Powdered milk is simply regular milk with the bulk of its moisture content removed. It’s still real milk; it can just last a whole lot longer on the shelf.

Why would I want to store it?

Powdered milk is as versatile as fresh milk and can be used in much the same way. It has the advantage, however, of being a shelf-stable product. This longer shelf life makes it an excellent choice to stock in your food storage pantry for everyday and emergency use.

How Long Does Powdered Milk Last?

Powdered milk has a much longer shelf life than fresh milk because most of the moisture has been removed. Many manufacturers recommend using it within about 18 months, but when stored properly it can remain usable for years beyond the best-by date.

I purchased a large 10-pound bag of powdered milk more than ten years ago from a local dairy, and the dry powder still had a great flavor for years after that. The only issue I ran into was, after a while, mice discovered the delicious flavor once they chewed through the mylar bag!

Other than protecting it from rogue mice, dried milk stores best at stable, cooler temperatures, protected from moisture, including humidity, and in airtight containers.

Some emergency food suppliers even package powdered milk with shelf lives of 10–25 years under ideal conditions, with heat and moisture being the major issues. Besides using heavy duty mylar bags for storage, food-safe plastic buckets with tight-fitting lids work well, too.

Why is it helpful to store for emergencies?

In particular, it supplies fresh milk that may otherwise be unavailable in emergencies. In addition, it’s an excellent source of vitamins A and D, calcium, and also protein at a time when nutrition is even more critical. However, note that non-fat varieties don’t contain Vitamins A and D.

In a power outage when refrigerated milk goes bad quickly, powdered milk can step in as a reliable substitute for cooking, baking, and drinking. Learning more about how to store powdered milk can ensure you always have this reliable staple at its height of flavor and nutrition.

Does Powdered Milk Go Bad?

Yes, powdered milk can eventually go bad, especially if exposed to heat, moisture, or air. Signs that powdered milk has deteriorated include:

• a sour or rancid smell
• yellowing powder
• clumping from moisture exposure
• an off flavor when mixed

Nonfat powdered milk typically lasts longer because it contains little fat, while whole milk powder can turn rancid more quickly.

Two Primary Types of Powdered Milk

“Instant Dry Milk”

Instant Dry Milk is non-fat and dissolves instantly in cold and hot water. This is your go-to product if you’re looking to stock up on milk used primarily for drinking. If your only memory of drinking dried milk is 20 years old, I think you’ll be pleasantly surprised by the taste. The product has improved a lot since then!

Instant milk is made by a process called spray drying, in which milk is quickly dried by hot air. This produces a very fine powder, which helps instant milk dissolve quickly when mixed with water.

Some moms add a small amount of vanilla to the rehydrated milk, just to add a little extra flavor, and then serve it nice and cold. If you’re concerned about additives, check the label on the brand you’re considering buying. Some add only Vitamins A and D3, while others might contain additional ingredients.

This product can also be used in cooking and baking recipes, making it a workhorse in the kitchen.

Store it carefully, however, in the coolest location possible. Its ideal storage temperature is in the 55-70 degree range (F), which is quite cool. Warmer temperatures lead to a gradual decline in vitamins and flavor; however, calories, carbs, proteins, and minerals remain constant.

Regular Powdered Milk (non-instant)

Not all food storage companies sell powdered milk, but this dry milk is a little different from “instant” dry milk. It’s also non-fat but is intended for cooking and baking. It doesn’t need rehydrating before being added to your recipes. If your family doesn’t drink much milk, you may want to stock up more with powdered milk and less with instant.

Powdered milk is created in a process called drum drying. This process produces a dry milk with a different texture than instant milk, and since more heat is added in the drum drying process, the flavor changes slightly. You could still drink this, but it may be less palatable than the instant variety.

Additionally, the powdered milk particles aren’t puffed with air, making it more challenging to combine with water. Because of this, some moms mix powdered milk with a small amount of warm water first for easier blending, then add it to cold.

Another method is to add a small amount of water to the powder to form a paste, then slowly stream in the remaining water while continuously mixing.

Instant and powdered milk are low-fat, but if you want whole milk powder, try this one.

Finally, as a last resort and if you have power to spare (i.e. not an emergency), a blender or food processor could make quick work of mixing.

Types of Dried Milk

Type	Best Uses	Shelf Life	Notes
Instant Nonfat Dry Milk	Drinking, baking	Longest – 10+ years	Dissolves quickly
Whole Milk Powder	Coffee, richer recipes	Shorter – up to 3 years	Contains fat
Buttermilk Powder	Baking	Long – more than 5 years	Great for pancakes & biscuits
Dairy-Free Milk Powder	Storage alternative	Varies	Soy, coconut, etc

The Care and Use of Powdered Milk

This variety of milk is pretty easy in most respects. Just a few guidelines are needed:

How to Convert to Fresh Milk

Both Instant or Powdered milk combine with water to produce milk suitable for recipes. Check your container of instant/powdered milk for instructions, but in most cases, you can use these measurements:

• 1 cup water + 1/3 cup dry milk =  1 cup milk
• 1 quart water + 1 1/3 cups dry milk = 1 quart milk
• 2 quarts water + 2 2/3 cups dry milk = 2 quarts milk
• 1 gallon water + 5 1/3 cups dry milk = 1 gallon milk

A #10 can of instant milk makes around 50-55 cups of rehydrated milk. That’s like keeping about 3-1/2 gallons of fresh milk around! And in 1/3 the space. That’s a food storage win right there, my friends.

The Best Way to Store Powdered Milk

Dry milk can be a bit fussy when it comes to long-term storage. Food storage companies will claim that their dry milk will last 25 years in storage, but that’s in optimal conditions in temperatures ranging from 55 to 70 degrees (F)! Most homes are warmer than that, and household temperatures vary daily and seasonally. Inconsistent temperatures negatively affect any food in your pantry. (See my article about the enemies of food storage.)

Use the package best buy date as a starting point, but per the Utah State University (USU) Extension service packaged non-fat dry milk has a shelf life of 3 months to 3-5 years, per USU studies. The temperature the product is stored is the determining factor. Therefore, the general rule of thumb is to keep it as cool, dry, and dark as possible for the most extended shelf life.

Once opened, transfer the product to a metal or glass airtight container. It can pick up off flavors from plastic. Again, store in a cool, dry, dark location. Refrigerating and freezing can extend its storage life, provided it’s protected from moisture and oxygen.

USU gives opened dry milk a three-month life span. But, again, use this as a guide, not a hard and fast rule. We preppers know that many foods last longer than manufacturers and clinical studies recommend. Look for indications that it is gone bad, such as discoloration and a bad smell.

How to Keep A Fresh Supply in Your Food Rotation

Because milk is a little pickier than other foods, it may be wise to stock up on smaller amounts and put it in your regular food rotation. That is, use the dry milk with the oldest expiration date and then replace it with newer, fresher dry milk.

If you don’t use dry milk all that often but still want it in your storage, either buy it in smaller containers (#2.5 cans rather than the gallon-size #10s) or repackage it in canning jars or smaller mylar bags. This article contains instructions for repackaging foods.

How Versatile is Powdered Milk?

You probably know how to quickly transform regular milk into buttermilk, but you can also do the same and more with dry milk. For example:

• Buttermilk – Add 1 Tablespoon of lemon juice or vinegar to one cup of reconstituted milk. Stir and allow to set for 5 minutes. Add to any recipe that calls for buttermilk.
• Sweetened Condensed Milk – In a blender, combine 1/2 cup hot water, 1 cup dry milk, 1 cup sugar, and 1 Tablespoon butter. Blend well and use in any recipe in place of sweetened condensed milk.
• Evaporated Milk – Whisk or use an electric mixer to combine  1-1/2 cups water and 1/2 c. + 1 Tablespoon powdered milk powder. When thoroughly combined, use this in place of evaporated milk.

Tips to Improve the Taste of Reconstituted Milk

Ok, so maybe you like the idea of having a source of milk stored long-term but reconstituted milk just makes you gag. Well, here are some tips to help tame the ol’ gag reflex:

• Add vanilla
• Add sugar or another sweetener. Chocolate syrup is a great option, so is flavored coffee creamer, which can be stored in powder form.
• Store the milk in glass jars. (A great-aunt always transferred her store-bought, liquid milk into a glass pitcher, insisting it tasted better. But come to think of it, soda pop from a bottle tasted better from a can or a 2-liter plastic bottle, too.)
• Add evaporated milk to add richness. Heavy cream is another option, but you may not have this on hand long-term in an emergency.
• Chill it for drinking. Some things taste better cold; this is one of them.
• Add egg powder and a neutral oil. The egg powder acts as an emulsifier, allowing you to add fat in the form of oil. Then add vanilla or sweeteners to help with the taste. This method is definitely better suited to an electric mixing tool. Plus, who would want to do all that work in an emergency anyway?! Read all about how to use dehydrated eggs here.
• Use the freshest dry milk first for drinking; save the older stuff for cooking and baking.
• Add salt. Just a smidge, though. Salt acts like a flavor enhancer and may also make it taste a teensy bit sweeter.
• Store leftover powder in a metal or glass container to prevent the absorption of odd odors that can occur from plastic and affect the taste of the milk. If using glass, store it in a dark place to prevent light absorption.
• For best taste, wait several hours after reconstituting before drinking.

Surprising Uses for Powdered Milk

Powdered milk isn’t just for drinking or to add to a bowl of cereal. It comes in handy for:

• Adding creaminess to a casserole or soup
• To enrich bread dough (some bread recipes call for dried milk)
• Add creaminess to a gravy or sauce
• Boost protein in hot cereal, like oatmeal
• Make dry, hot cocoa mixes
• Make homemade yogurt
• Stretch your fresh milk supply (combine 1/2 fresh milk with 1/2 reconstituted dried milk)
• Use in place of water when cooking millet, oat groats, or rice

Because it’s lightweight and versatile, it’s a must-have in your emergency food storage pantry.

Other Types of Milk & Milk Alternatives Suitable for Long-term Storage

Having a variety of milk options in long-term storage makes good sense. Layers, right? Backups to our backups, you know? Here are some other options:

• UHT milk: Ultra-high temperature milk that is 99.9% free of bacteria with a shelf life of six to nine months until opened. No refrigeration is required. Once opened, treat it as you would regular milk.
• Evaporated milk: Pasteurized milk is simmered until it’s reduced. Add water in a 1:1 ratio. I’ve successfully used it in specific recipes, think homemade mac-n-cheese, without reconstituting. You can also use a different water ratio that’s more to your liking. Refrigerate once opened.
• Coconut milk powder: Made by dehydrating fresh coconut milk, this is a non-dairy option. No refrigeration is required until rehydrated.
• Oat, almond, soy milks: All non-dairy, shelf-stable options requiring refrigeration after opening.

Bonus recipe

Try this yummy Hot Cinnamon Milk Mix!

• 2 cups Nonfat Powdered Milk
• 1 cup dry powdered creamer
• 1 cup sugar
• Vanilla extract
• 1 1/2 teaspoons cinnamon

Mix all dry ingredients together and store in an airtight container. Add three heaping spoonfuls to a mug of hot water. Add a splash of vanilla, stir well, and enjoy!

More Food Storage Tips

Learning how to store powdered milk is just one part of building a well-stocked pantry.

• How to Make Homemade Yogurt from Instant Milk
• How to Use Dehydrated Eggs
• Food Storage: Where do I begin?
• Protect Your Food Storage Investment from These 6 Enemies
• Food Storage: Where do I begin?Simple Emergency Food: Stocking Up With Canned Goods

Get your Freeze-Dried Food Primer now!

Final Thoughts

Powdered milk is as versatile as fresh milk and can be used in much the same way but has the advantage of being a shelf-stable product. This longer shelf life makes it an excellent choice to stock in your food storage pantry for everyday and emergency use.

Frequently Asked Questions