Ziploc Settles the Debate: Here’s How Many Times You Can Safely Reuse a Plastic Bag

If one of your New Year’s resolutions was to reduce single-use plastic, you’ve probably come across tips suggesting you wash and reuse plastic bags. Sounds great—save money and reduce waste! But how safe is this really, and how many times can you reuse a plastic bag?

Can You Wash and Reuse Plastic Zip-Top Bags?

Yes! According to Ziploc, their bags are designed with materials durable enough to be reused multiple times. Ziploc bags can safely be reused after washing by hand with soap and air-drying. However, any bags that show signs of damage or are tough to clean thoroughly (like after marinating with turmeric) should be discarded.

Just be sure to dry the inside of the bag completely before reusing it to avoid cross-contamination between old and new food. When properly cleaned and dried (see instructions below), Ziploc bags meet the FDA’s safety standards for temperatures used in defrosting and reheating food, meaning they can be washed with warm water without any harmful effects or damage.

When to Discard a Plastic Zip-Top Bag

A word of caution: Never reuse bags that have stored raw meat, fish, eggs, or foods that may trigger allergies. If the bag is damaged in any way, it’s best to dispose of it immediately!

How to Wash Zip-Top Plastic Bags

Start by emptying the bag of any leftover solids and turning it inside out for easier cleaning. Make sure to check the corners for any residue. Use warm soapy water (not hot) to gently scrub the entire bag, then rinse thoroughly. Turn the bag upside down to air dry. If you're in a hurry, you can wipe it dry with a clean towel, but good airflow is key.

What Can You Store in Reused Plastic Zip-Top Bags?

Dry goods are the ideal items for bags you plan to reuse. Foods that contain moisture, like marinades or perishable items such as baby greens, are more likely to leave residue that could harbor bacteria.

Still Hesitant About Reusing?

Consider switching to reusable silicone bags instead of plastic for a more sustainable and safer option. Ziploc’s Endurables® line, which includes silicone pouches and containers, is dishwasher safe and can withstand oven temperatures up to 425°F. The ability to handle high heat ensures thorough cleaning, something that hand-washing may not always achieve when it comes to preventing foodborne illness.

The Bottom Line

In summary, there's no fixed number of times you can safely wash and reuse a zip-top bag. It largely depends on what the bag was used for and how durable it is after washing.