You are doing it all wrong. Here's the right way to store produce

1. The Best Way to Store Tomatoes: Countertops Over Fridges
Tomatoes are one of the most commonly misunderstood produce items when it comes to storage. Many people instinctively place them in the refrigerator, thinking it will prolong their freshness. However, refrigeration can cause tomatoes to lose their flavor and develop a mealy texture. Instead, store your tomatoes on the countertop, ideally in a single layer to prevent bruising.
Room temperature is perfect for tomatoes, which allows them to maintain their flavor and ripen evenly. If you've purchased tomatoes that are not yet fully ripe, placing them stem-side down on the countertop can help them ripen more uniformly. Once they reach the desired ripeness, consume them within a few days for the best taste and texture.
2. Potatoes Done Right: Paper Bags Over Plastic
Potatoes are best stored in a cool, dark, and well-ventilated area. It's important to keep them away from light, which can cause them to turn green and develop solanine, a toxic compound. Instead of using plastic bags, which can trap moisture and lead to spoilage, opt for paper bags or a cardboard box to store your potatoes.
Ensure the storage area is around 45-50°F (7-10°C), which is slightly warmer than a refrigerator but cooler than room temperature. A pantry or a cellar can be ideal places for storing potatoes. Check them regularly, and remove any that show signs of sprouting or spoilage to prevent the spread to the rest of the batch.
3. Keeping Onions and Potatoes Separate: A Must for Freshness
Onions and potatoes are both staple ingredients in many kitchens, but storing them together can lead to early spoilage. Onions release gases and moisture that can cause potatoes to sprout and spoil more quickly. To keep both vegetables fresh for longer, store them separately.
Onions do well in a cool, dry, and well-ventilated space, much like potatoes, but they should be kept in mesh bags or baskets that allow air circulation. Keeping them apart not only extends their shelf life but also helps maintain their flavors.