How To Freeze Dry Plums

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Thinking about storing plums long-term? Freeze drying plums might be your best bet! It’s a game-changer for preserving flavor and extending the shelf life.

The process is simple and effective, ensuring you enjoy the sweet-tart goodness of plums whenever you want. In this blog post, I’ll show you how to freeze dry plums at home with ease. You’ll learn the step-by-step process, understand the benefits, and get tips to make sure your plums turn out perfect every time. Ready to turn your fresh plums into delicious, long-lasting snacks? Let’s get started!

What is Freeze Drying?

Freeze drying, also known as lyophilization, is an advanced method of preserving food by removing its water content. Unlike traditional drying methods that use heat, freeze drying uses a low temperature dehydration process. This technique helps to keep the food’s structure and nutrients intact, making it a preferred method for preserving fruits, including plums. Here’s a look at how the freeze drying process works. You can do other foods as well like apples, ice cream, chicken, and eggs.

The Freeze Drying Process

The process of freeze drying involves three main steps: freezing, vacuuming, and sublimation.

1. Freezing

The first step in freeze drying is freezing the food item. Plums, for example, are initially frozen to a temperature well below their freezing point. This turns the water inside the plums into ice. Freezing is critical because it preserves the fruit’s cellular structure and prevents the formation of large ice crystals, which could damage the tissue.

2. Vacuuming

Next, the frozen plums are placed in a vacuum chamber. The pressure inside the chamber is significantly reduced, lowering the atmospheric pressure around the fruit. This step is essential because it prepares the ice for the sublimation process. Without this step, the ice would just melt into water.

3. Sublimation

Finally, the chamber’s temperature is gradually increased while maintaining the low pressure. This causes sublimation, a process where the ice in the plums transitions directly from a solid to a gas without passing through the liquid phase. The water vapor is then removed from the chamber, leaving behind the freeze dried plums.

This method is different from traditional drying techniques, which often apply heat to evaporate water. Traditional drying can cause the fruit to shrink and lose some of its nutrients. Freeze drying, on the other hand, helps maintain the original shape, texture, and nutrient content of the plums.

By understanding these steps, you can see why freeze drying is such an effective way to preserve plums. It ensures that your plums remain tasty and nutritious for a long time.

Why Freeze Dry Plums?

Freeze drying plums isn’t just a fun kitchen experiment; it’s a smart way to keep these delicious fruits on hand year-round. When you freeze dry plums, you lock in their flavor and nutrition, turning them into a convenient snack that won’t spoil quickly. Imagine having a handful of summer on a cold winter’s day. Plus, freeze drying helps maintain the plums’ texture and color, making them look just as good as they taste.

Nutritional Benefits of Freeze Dried Plums

Freeze dried plums are packed with nutrients. They’re an excellent source of dietary fiber, which is great for digestion. Fiber helps keep you full, making freeze dried plums a satisfying snack that can curb your cravings.

But that’s not all. Freeze dried plums are also rich in antioxidants, which help fight free radicals in the body. Free radicals can cause oxidative stress, which is linked to various health issues, including aging and diseases. Eating freeze dried plums regularly can help you combat these problems.

Here’s a quick look at some key benefits:

• High in Fiber: Helps with digestion and keeps you full.
• Rich in Antioxidants: Fights free radicals and supports overall health.
• Vitamin Powerhouses: Plums are full of vitamin C and vitamin K, which are important for your immune system and bone health.

With freeze dried plums, you’re not just enjoying a tasty treat; you’re also doing something good for your health!

Preparing Plums for Freeze Drying

Preparing plums for freeze drying is a crucial step that sets the stage for perfect preservation. Getting it right will ensure that your freeze-dried plums come out delicious and nutritious. Here’s how to get started.

Selecting Fresh Plums

The first step to freeze drying plums is selecting the best fruit. You want to choose plums that are:

• Ripe but Firm: Look for plums that have a little give when you press them, but aren’t soft or mushy. Overripe plums can get too juicy, which makes them harder to freeze dry.
• Brightly Colored: A rich, vibrant color indicates that the plum is packed with flavor. Avoid plums with dull or faded skins.
• Unblemished: Check for bruises, cuts, or insect damage. These imperfections can affect the quality of your freeze-dried plums.

By picking the perfect plums, you’re halfway to a successful freeze drying process.

Cleaning and Cutting the Plums

Once you’ve chosen your plums, it’s time to prepare them for freeze drying. Proper cleaning and cutting are essential.

1. Wash the Plums: Rinse the plums under cool, running water to remove dirt and pesticides. If you’re concerned about pesticides, consider using a fruit and vegetable wash.
2. Remove the Pits: Cut the plum in half around the pit. Twist the halves in opposite directions to separate them. Use a small paring knife to remove the pit.
3. Slice the Plums: Cut each half into thin slices. The thinner the slices, the better they will freeze dry. Aim for about ¼ inch thickness.
4. Optional Pre-Treatment: For those who want to preserve color and flavor, consider soaking the plum slices in a lemon juice and water solution for a few minutes.

By carefully preparing the plums, you ensure they are ready for the freeze drying process. Clean, properly cut fruit will dry more evenly and retain more of its natural goodness.

With these preparation steps, you’re ready to move on to the freeze drying process, turning fresh plums into delicious snacks that last.

As you can see, I did all of that here, but I had to store them in gallon ziplock bags and freeze them until I was able to get them into the freeze dryer. I had a lot of eggs I had to get through first.

The Freeze Drying Process at Home

Freeze drying plums at home can be a fun and rewarding way to preserve this delicious fruit. Not only does it extend the shelf life, but it also retains the taste and nutritional value.

Freeze Drying In Easy Steps

Here you can see my plums in the freeze dryer with the ice around the drum. They’re ready to pull out and package!

1. Prepare the Plums: Wash the plums thoroughly, remove the stems, and pit them.
2. Slice the Plums: Cut the plums into uniform slices. This helps them freeze dry evenly.
3. Pre-Freeze: Place the plum slices on a tray and put them in the freezer until they are solid. This step is important for the freeze dryer to work effectively.
4. Load the Freeze Dryer: Arrange the pre-frozen plum slices in the freeze dryer trays. Make sure they are evenly spread out and not touching each other.
5. Set the Freeze Dryer: Follow the manufacturer’s instructions to set the appropriate temperature and time for freeze drying plums.
6. Start the Freeze Dryer: Turn on the freeze dryer and wait. The process can take 20 to 40 hours depending on the machine.
7. Store the Plums: Once the process is complete, store the freeze-dried plums in airtight containers or vacuum-sealed bags to keep them fresh.

Pro Tip: Label the storage bags with the date so you can keep track of their freshness!

Alternative Methods for Storing Plums

You can freeze them in bags and you can dehydrate them, but honestly, nothing stores them quite as nicely as freeze drying.

Storing Freeze Dried Plums

Once you’ve successfully freeze dried your plums, proper storage is crucial to maintain their flavor and quality. Effective storage ensures that your hard work doesn’t go to waste and keeps your plums tasty for a long time.

Best Storage Containers

To store your freeze dried plums properly, the choice of container is key. Here are some options to consider:

1. Airtight Containers:
   • Mason Jars: These are a popular choice due to their airtight seals. They are sturdy and can be reused.
   • Mylar Bags: Ideal for long-term storage, especially when combined with oxygen absorbers.
   • Vacuum Sealed Bags: These remove air and prevent moisture, which is vital to keep your plums fresh.
2. Resealable Snack Pouches:
   • Durable Plastic: These can be resealed after each use, making them perfect for daily snacking.
   • Stackable Designs: Opt for pouches that can be stacked to save space in your pantry.

Here’s how to seal these containers properly:

• Mason Jars: Ensure the lid is tightly screwed on. After filling the jar, add an oxygen absorber before sealing.
• Mylar Bags: Seal the top using a heat-sealer, and make sure there is no residual air inside. Adding an oxygen absorber inside the bag will extend the shelf life.
• Vacuum Sealed Bags: Use a vacuum sealer to suck out the air before sealing. This method is great for preserving the texture and taste.

Keeping these plums stored correctly not only saves their texture and taste but also ensures you have a delicious snack ready whenever you want!

Using Freeze Dried Plums in Recipes

Freeze dried plums are incredibly versatile and easy to use in all sorts of recipes. Whether you want a sweet snack or a unique ingredient for baking, these tiny flavor bombs have got you covered. Let’s explore some exciting ways to incorporate freeze dried plums into your culinary adventures.

Snack Ideas with Freeze Dried Plums

When it comes to snacking, freeze dried plums are a must-try. They’re perfect for satisfying your sweet tooth while still being healthy. Here are some quick and fun snack ideas:

• Trail Mix: Add freeze dried plums to your favorite trail mix for a sweet and tangy punch. Mix them with nuts, seeds, and a few chocolate chips for an irresistible snack.
• Smoothies: Looking for an easy way to boost your smoothie game? Toss in some freeze dried plums. They add a burst of flavor, and you won’t need any added sugar.
• Yogurt Topping: Sprinkle freeze dried plum pieces over your morning yogurt. It’s a delightful way to start your day.
• Homemade Granola Bars: Mix freeze dried plums into your granola bar recipe. They’ll add a chewy texture and a great flavor twist.

These snack ideas are not only tasty but also super easy to prepare. Perfect for those busy days when you need a quick bite.

Baking with Freeze Dried Plums

Baking with freeze dried plums can elevate your baked goods to a whole new level. Their concentrated flavor means a little goes a long way. Here are some delicious baking ideas:

• Muffins and Bread: Add chopped freeze dried plums to your muffin or bread batter. They add a beautiful fruity note and a bit of chewiness.
• Cookies: Mix freeze dried plum pieces into your cookie dough. They pair especially well with oatmeal or almond cookies.
• Cakes: Grind freeze dried plums into a powder and fold it into your cake batter. It will give your cake a sweet, subtle plum flavor.
• Frosting and Glazes: Use powdered freeze dried plums to flavor your frosting or glaze. Mix it in with the sugar for a vibrant color and delicious taste.
• Doughnuts: Add freeze dried plum powder to your doughnut batter or sprinkle it on top of the glaze for an extra-special treat.

These baking ideas are sure to become family favorites. They add a unique twist to traditional recipes, making every bite exciting.

Remember, freeze dried plums are not just for snacking or baking; you can get creative and use them in salads, cereals, and more. The possibilities are endless!

Freeze drying plums isn’t just a method; it’s a rewarding process that extends their shelf life while preserving flavor and nutrition. Enjoy the convenience of plums year-round and elevate your snacking game.

Ready to give it a try? Start freeze drying plums and experience the benefits yourself. You’ll gain more control over your food choices and discover new ways to enjoy them.

Aren’t these gorgeous? They have a slightly shrinked appearance, but not by much. They’re also crunchy unless you reconstitute them with a water spritz. I love to eat these like crackers or chips. They’re phenomenal with sliced white cheddar.

Freeze Drying Plums FAQ

What are the benefits of freeze-drying plums?

Freeze-drying preserves the nutrients and flavors of plums while extending their shelf life.

How do I prepare plums for freeze-drying?

Wash them thoroughly, remove stems and leaves, cut in half, and remove the pits.

Can I freeze-dry any type of plum?

Yes, most varieties of plums can be freeze-dried effectively. As long as they’re done before they get too ripe.

How long does it take to freeze-dry plums?

The process usually takes about 20-30 hours, depending on the freeze dryer and the thickness of the plums. The thickness I have above took me 48 hours – I also live in a humid state, Missouri. So it took a little longer.

Do freeze-dried plums retain their nutritional value?

Yes, freeze-drying retains most of the vitamins and minerals found in fresh plums.

What’s the best way to store freeze-dried plums?

Store them in airtight containers in a cool, dry place to maintain their quality. I like them in mylar bags.

Can I rehydrate freeze-dried plums?

Yes, you can rehydrate them by soaking in water until they reach the desired consistency. I like to spritz them and bring them back slowly so I don’t overdo ut.

Is the freeze-drying process safe?

Absolutely. Freeze-drying is a safe method of preserving food without the need for additives or preservatives.

Do I need a special machine to freeze-dry plums?

Yes, a home freeze dryer is necessary for freeze-drying plums at home. I got mine from Harvest Right but they have other options out there now as well.

How do freeze-dried plums taste?

They have a concentrated plum flavor, are crunchy, and can be eaten as a snack or used in recipes.

HOW DO I FREEZE DRY FOOD?

Many people think it’s next to impossible to do the freeze drying for themselves. This is far from factual. Freeze drying at home is made easy by Harvest Right. They sell three different sizes of freeze-drying machines that do everything in the machine – except prep and package.

That’s up to you.

For all intents and purposes, here at Freeze Drying Mama we use the medium sized freeze dryer. You can check out the sizes offered at Harvest Right here.

What this machine does is first freeze the items on stainless steel trays to -41 degrees or lower. This takes about 10 hours or so.

Then a vacuum pump turns on and creates a vacuum inside the drum. This is the drying stage and will vacillate the heat of the tray up and down to a pretty warm temperature. This makes the frozen items release any water in them in vapor form. The vacuum sucks the moisture to the drum. This collects in ice form on the inner circle of the drum.

Then there’s the final dry which is essentially the same thing, but with a time associated with it and an end in sight!

WHAT SETTINGS DO I USE TO FREEZE DRY FOOD?

On the Harvest Right freeze drier – this works on all sizes – after putting the trays inside the drum on the shelves, I put in the drum cover (if you don’t have a drum cover, no worries) and then tighten the handle as I lock it shut. On the computer touch screen, I selected START > LIQUID > NOT-FROZEN > CONTINUE. After inputting the settings and making sure my drain tube is closed, I walk away.