How to Use Vacuum Seal Bags with Souper Cubes for Extended Freezer Storage

Freezer storage is a cornerstone of efficient meal prep, but even the best silicone trays can leave your food vulnerable to freezer burn over time if not sealed properly. Vacuum seal bags offer an airtight solution that dramatically extends the shelf life of frozen foods, locking in flavor and texture for months rather than weeks. When paired with Souper Cubes trays, you get the best of both worlds: perfectly portioned, easy-to-release cubes that slide right into a vacuum bag for long-term storage.

In this guide, we’ll walk you through the step-by-step process of using vacuum seal bags with Souper Cubes trays, from freezing your ingredients to sealing and labeling. Whether you’re batch-cooking soups, stews, sauces, or even baby food, this method will help you reduce waste, save time, and keep your freezer organized. Plus, we’ll share tips on which Souper Cubes products work best for this technique and how to label your bags for quick identification.

Why Combine Vacuum Seal Bags with Silicone Freezer Trays?

Vacuum sealing removes air from the storage bag, preventing oxidation and ice crystal formation that cause freezer burn. Silicone freezer trays, like the Freezer Tray - 2-Cup, allow you to pre-portion liquids and semi-solids into uniform blocks that fit neatly into vacuum bags. This combination eliminates the need to scoop or thaw an entire container when you only need a single serving. Instead, you can pop out one or two frozen cubes, seal the bag again (if using a resealable vacuum bag), and return the rest to the freezer without any mess or waste.

Another advantage is space efficiency. Vacuum bags lie flat and stack easily, so you can store dozens of pre-portioned cubes in a small freezer drawer. By using the Freezer Tray - Half Cup for smaller portions, you can customize your meal prep to fit recipes that call for half cups or full cups of broth, sauce, or puree. The trays’ flexible silicone makes it effortless to release frozen blocks without chipping or cracking, ensuring each cube is intact and ready for vacuum sealing.

• Reduces freezer burn by removing air around each portion.
• Saves freezer space by stacking flat vacuum bags.
• Allows you to thaw only what you need, preserving the rest.
• Works with both manual and automatic vacuum sealers.

Step-by-Step: Freezing Souper Cubes for Vacuum Sealing

Start by preparing your food as you normally would—soup, stew, sauce, or even cooked grains. Pour the mixture into your chosen Souper Cubes tray. For larger portions, the Freezer Tray - 2-Cup is ideal for family-sized servings, while the Freezer Tray - Half Cup works perfectly for individual portions or recipe ingredients. Fill each cavity to the brim, but avoid overfilling to prevent spillage during freezing.

Place the filled tray on a level surface in your freezer. Allow the contents to freeze completely—typically 4 to 6 hours for liquid-based foods, or overnight for thicker mixtures. Once frozen solid, run the bottom of the tray under warm water for a few seconds to loosen the cubes. Gently press the bottom of each cavity to release the frozen block. You’ll have perfectly uniform, solid cubes that are ready for vacuum bagging.

• Use a spatula to level the tops of filled cavities for even cubes.
• For sticky foods like tomato sauce, lightly spray the tray with cooking oil before filling.
• If you’re short on time, freeze in two stages: fill halfway, freeze, then top off and freeze again.

How to Vacuum Seal Frozen Souper Cubes

Once your cubes are frozen solid, it’s time to transfer them to vacuum seal bags. Choose a bag size that fits the number of cubes you plan to seal together. For single servings, a small bag works well; for multiple cubes, use a larger bag. Arrange the cubes in a single layer inside the bag, leaving at least 2 inches of space at the open end for sealing. Avoid overcrowding, as cubes need to be in contact with the bag for the vacuum to remove air effectively.

If your vacuum sealer has a “moist” or “gentle” setting, use it to prevent liquid from being sucked into the machine. Seal the bag according to your sealer’s instructions. For resealable vacuum bags, you can open the bag later to remove a cube and reseal it. Label each bag with the contents and date using a Water-Based Paint Kitchen Marker, which writes clearly on plastic and wipes off easily for reuse. This step keeps your freezer organized and helps you track shelf life.

• For best results, freeze cubes on a baking sheet before bagging to prevent sticking.
• Use a straw to manually remove air if you don’t own a vacuum sealer (place the straw at the edge, seal most of the bag, then suck out the air and seal completely).
• Always leave a small gap between cubes so the vacuum can pull air from all sides.

Tips for Labeling and Organizing Your Vacuum-Sealed Cubes

Proper labeling is essential when you have multiple bags of frozen cubes. The Water-Based Paint Kitchen Marker is perfect for this task because it’s food-safe, dries quickly, and resists smudging in the freezer. Write the name of the food, the date it was frozen, and the quantity (e.g., “Chicken Broth – 2 cups – Jan 15”). You can also color-code bags by category—red for soups, blue for sauces, green for purees—for even faster retrieval.

Store the sealed bags flat in a single layer until they are fully frozen, then stack them vertically like books to save space. Keep a running inventory list on your phone or a whiteboard on the freezer door. When you need a specific ingredient, simply pull out the bag, remove the desired number of cubes, and reseal the bag if it’s resealable. This system turns your freezer into a well-organized pantry of ready-to-use components.

• Test your marker on a corner of the bag first to ensure it writes smoothly.
• If using non-resealable bags, cut open the bag and transfer unused cubes to a new bag.
• Use clear bags so you can see the contents without opening.

Combining Souper Cubes silicone trays with vacuum seal bags is a game-changer for anyone serious about meal prep. You get perfectly portioned, easy-to-release cubes that stay fresh for months without freezer burn. Start with the Freezer Tray - 2-Cup for larger batches or the Freezer Tray - Half Cup for smaller servings, and pair them with a reliable vacuum sealer and a Water-Based Paint Kitchen Marker for labeling. Your future self will thank you when dinner is just a cube away.