Even if the bottom fridge doesn't have any noticeable smell, there are a few reasons why your food might develop a stench even when stored in tightly closed containers:
Previous Contamination: Sometimes, the smell can be absorbed by the food from previous items stored in the same container or the fridge. If a pungent-smelling food was stored in the container before, its odor might linger and affect the current contents.
Air Circulation: While the container is tightly closed, there might still be some limited air circulation inside. This can allow odors from one food item to transfer to others, especially if they are strongly scented or pungent.
Permeable Containers: Not all containers are completely airtight or odor-proof. Some materials, like certain plastics or older containers, may allow odors to permeate through the walls of the container.
Food Spoilage: If any food item stored in the container is spoiling or going bad, it can release foul odors that permeate the container and affect the other foods.
Improper Cleaning: If the container hasn't been cleaned thoroughly, food residues or spills from previous uses can lead to odor buildup over time.
To mitigate these issues and keep your food fresh and odor-free in tightly closed containers, here are some tips:
Use High-Quality Containers: Invest in good-quality airtight containers specifically designed to keep odors from leaking in or out.
Separate Strongly Scented Foods: When possible, store strongly scented foods (like onions, garlic, or strong cheeses) in separate containers to avoid cross-contamination.
Clean Containers Regularly: Wash containers with hot soapy water after each use to ensure there are no lingering odors.
Check Food Freshness: Make sure the food you're storing is fresh and not already developing an odor before being stored in the container.
Use Baking Soda: Placing an open container of baking soda in the fridge can help absorb and neutralize odors.
Keep an Organized Fridge: Keep your fridge organized to avoid spillage and cross-contamination between different food items.
By following these tips, you can help ensure that your food stays fresh and odor-free when stored in tightly closed containers.