Silicone Food Freezer Trays & Kitchen Accessories - Souper Cubes®

How to Use Souper Cubes Trays for Freezing Leftovers and Reducing Food Waste

How to Use Souper Cubes Trays for Freezing Leftovers and Reducing Food Waste

By Silicone Food Freezer Trays & Kitchen Accessories - Souper Cubes® | Published: 2026-07-20

Category: How-to Guides

Learn how to freeze leftovers in Souper Cubes silicone trays to reduce food waste, portion meals perfectly, and save money. Step-by-step guide with practical tips.

Food waste is a major issue in many households, with the average family throwing away hundreds of dollars worth of food each year. Leftovers often end up in the back of the fridge, forgotten until they spoil. But with the right tools and a simple system, you can transform those extra portions into convenient, ready-to-eat meals that save you time and money.

Silicone freezer trays, like those from Souper Cubes, offer a smart solution for freezing leftovers in perfectly portioned blocks. Instead of letting that extra chili, soup, or casserole go to waste, you can freeze it in individual servings and enjoy it later. This guide will show you exactly how to use Souper Cubes trays to reduce food waste, streamline your meal prep, and make the most of every ingredient.

Silicone Freezer Trays
Silicone freezer trays

Why Souper Cubes Trays Are Ideal for Leftovers

Souper Cubes trays are made from 100% pure food-grade silicone, which is flexible, non-stick, and freezer-safe. Unlike rigid plastic containers, silicone trays allow you to pop out frozen portions easily without wrestling with stuck food. The trays come in 1-cup and 2-cup sizes, making them perfect for individual servings or family-sized portions.

The 1-cup size is great for single servings of soup, stew, or sauce, while the 2-cup size works well for heartier leftovers like pasta bakes or casseroles. Because the trays are stackable, you can maximize freezer space without the mess of mismatched containers. Plus, the silicone material is safe for temperatures from -40°F to 450°F, so you can go directly from freezer to oven or microwave.

  • Flexible silicone makes removing frozen portions effortless.
  • 1-cup and 2-cup sizes suit different portion needs.
  • Stackable design saves freezer space.
  • Safe for freezer, oven, and microwave use.

Step 1: Prepare Your Leftovers for Freezing

Before you freeze leftovers, make sure they are cooled to room temperature. Placing hot food directly into the freezer can raise the temperature inside and affect other stored items. Let soups, stews, and casseroles cool on the counter for about 30 minutes, stirring occasionally to release steam.

If your leftovers are chunky, like a vegetable stir-fry or meat sauce, consider chopping larger pieces into uniform sizes. This ensures even freezing and easier reheating. For liquid-heavy dishes like broth or curry, you can fill the trays directly. For thicker foods like mashed potatoes or refried beans, use a spoon to press the mixture into the tray cavities for a smooth fill.

  • Cool leftovers to room temperature before freezing.
  • Chop large pieces into uniform sizes.
  • Use a spoon to press thick mixtures into cavities.

Step 2: Portion and Fill the Trays

Souper Cubes trays have clearly marked fill lines, so you know exactly how much each cavity holds. For the 1-cup tray, fill each cavity to the line for a perfect single serving. For the 2-cup tray, you can fill it halfway for a 1-cup portion or to the top for a full 2-cup serving. This flexibility lets you customize portions based on your needs.

When filling, avoid overfilling because liquids expand as they freeze. Leave about 1/4 inch of headspace at the top of each cavity. If you are freezing something with a strong odor, like fish or garlic-heavy dishes, consider wrapping the tray in plastic wrap or placing it in a vacuum-sealed bag. The Vacuum Seal Pre-cut Bags work well for this purpose, keeping odors contained and preventing freezer burn.

Vacuum Seal Pre-cut Bags
Vacuum Seal Pre-cut Bags
  • Use fill lines for accurate portions.
  • Leave headspace for liquid expansion.
  • Use vacuum seal bags for odor control and extra protection.

Step 3: Freeze and Remove Portions

Place the filled trays in the freezer on a flat surface. Allow them to freeze completely, which usually takes 4 to 6 hours depending on the thickness of the food. Once frozen solid, remove the tray from the freezer and let it sit at room temperature for 2 to 3 minutes. This slight warming helps the silicone flex and release the frozen blocks easily.

To pop out the portions, gently push up on the bottom of each cavity. The frozen block should slide out cleanly. If it sticks, run the bottom of the tray under warm water for a few seconds. Transfer the frozen blocks to labeled freezer bags or airtight containers for long-term storage. The Freezer Tray - 2-Cup is especially handy for larger portions, while the 1-cup version is perfect for single servings.

  • Let tray sit at room temperature for easy removal.
  • Push up from the bottom to release frozen blocks.
  • Transfer to labeled bags or containers for storage.

Step 4: Label and Store for Easy Access

Proper labeling is key to reducing food waste. Without labels, frozen leftovers can become a mystery, leading to forgotten meals that eventually get tossed. Use a permanent marker or a kitchen marker to write the dish name and date on the bag or container. Souper Cubes offers markers that write on plastic and silicone, making it easy to track what you have.

Store frozen blocks in a dedicated section of your freezer, grouped by type (soups, sauces, casseroles). Stack the blocks flat to save space. When you need a quick meal, simply grab the number of portions you need and reheat. This system not only reduces waste but also makes weeknight dinners effortless.

  • Label each portion with dish name and date.
  • Group frozen blocks by meal type.
  • Stack flat for efficient freezer organization.

Tips for Reducing Food Waste with Souper Cubes

Beyond leftovers, Souper Cubes trays can help you use up odds and ends in your kitchen. Freeze leftover tomato paste in 1-cup portions, save extra broth from cooking, or freeze fresh herbs in olive oil. These small actions add up, preventing ingredients from spoiling in the fridge.

Another strategy is to cook in bulk on weekends. Prepare a large batch of chili, soup, or pasta sauce, then freeze individual servings in the trays. This way, you always have a homemade meal ready, reducing the temptation to order takeout or let ingredients go bad. The Ceramic Baking Dish 2.0 - 5" Square is great for baking casseroles that can be portioned and frozen in the trays afterward.

  • Freeze small quantities like tomato paste or broth.
  • Cook in bulk and freeze individual portions.
  • Use baking dishes for casseroles, then transfer to trays.

By using Souper Cubes trays to freeze leftovers, you can significantly cut down on food waste, save money, and enjoy homemade meals anytime. The flexible silicone design and precise portion sizes make it easy to store and reheat exactly what you need. Start your waste-reduction journey today with the Freezer Tray - 1-Cup, and discover how simple it is to make the most of every meal.

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