When you consider the fridge a place for leftover storage, you probably assume that since the appliance is keeping your food cool, it’s also preventing spoilage. But unless you’re properly storing your goods in there, you could actualy be aiding in the spreading of bacteria. You might stash some salad beside some chicken. Sure, it’s convenient. But it also mean that juices from those products can trickle over to others. It’s not necessarily about the food itself, it’s about cross-contamination.
Here’s the logic behind storing by gravity: Raw proteins goes on the lowest shelves; nothing above will get contaminated by the raw meats. Foods that are ready-to-eat, meaning, nothing further need to be done to make them safe to eat, such as cooking (are stored on top shelf). Why? Because once something has become ready-to-eat it shouldn’t of need to be cooked again (to destroy any possible germs).
How to Organize Your Fridge Safely
Imagine your fridge is a hierarchy of safety from top to bottom. Anything you’ll consume without further preparation goes on the highest shelves (yogurt, cooked pasta). Then, the higher the shelf, the lower the risk (as you descend). The bottom shelf are for raw meat and poultry only. That way, no salmonella from chicken or E. Coli from beef will fall on anything else… Say, cheese or greens.
A simple change in arrangement make a big difference in food safety. Fewer still pay attention to zones within the appliance. Warmer air from the room enters whenever you open refrigerator door because the old air escapes. This makes the door itself a relatively warm zone. It is not good for perishable foods like milk and eggs, which require constant cold zone. Condiments stored in the door will be preserved by their salt or acid content, but otherwise this isn’t the best spot.
The coldest section of refrigerator, at least around my house, is right behind the cooling element in the back. That’s where you want to keep raw meats that should never rise above freezing before cooking time. Knowing your fridge’s zones will help you stash things safely and for as long as possible.
Beyond the risk of cross contamination from raw meat to produce, unwashed vegetables can bring soil bacteria to cooked food. Cracked eggs can also deposit their contents on greens. Then there are moldy berries dropping spores onto neighboring fruit.
The solution is to keep allergenic foods away from allergy-free ones, particularly if you have any dietary restrictions in the house. Everything goes into sealed containers. If it’s seafood, a bowl will catch drips from zip-top bag. Vacuum-sealing eliminates oxygen. This slow down bacterial growth and prevents freezer burn on meats. It also stretches freshness.
Where they’re stored is important, so is how you prep them. If you’re cutting up bread after using a cutting board that was used to cut up raw chicken, you’ve got a problem. Color coded cutting boards can make it automatic. You could have one labeled for meats (red), another for vegetables (green), and a third for items like dairy/cooked foods (white). When you’re tired, you don’t have to remember which board goes where; just look at the color and know what’s supposed to go on it.
Don’t defrost meat on the counter! The outside will warm up quickly, allowing the bacteria to start multiplying. However, the middle will still remain frozen. Always defrost meat in fridge or under cold running water.
Preventing food from getting contaminated is largely about discipline, not over-vigilance. There’s no need to sterilize everything daily in your home. Simply understand how contamination flow through your space. Cover up raw foods; keep them low. Protect ready-to-eat foods; keep them high. Wash fruits and vegetables before putting them in storage (you don’t want to be chilling all that dirt). Label leftover containers with the date for future reference (so you’ll remember when to toss things). All these little practices creates a wall between you and foodborne illness.
If you set up your refrigerator with intention, using it as a controlled environment instead of a chaotic closet. Then you’re protecting yourself without too much work. Your refrigerator was created to keep food safe, as long as you organize it that way. Letting gravity do its job, keeping the danger down below, where it belongs, is the whole point.