Here's Why You Should Never Reuse A FoodSaver Bag, Even If You Take Precautions - Tasting Table

"According to FoodVacBags, you should never reuse bags that were used to seal raw meat, fish, eggs, or soft cheeses. These foods can leave behind microscopic traces of bacteria like salmonella, listeria, or E. coli - and even a high-temp scrub won't guarantee those pathogens are gone. Reusing bags that have touched raw animal products risks cross-contamination and foodborne illness, especially if you're planning to seal ready-to-eat foods the second time around."

"Not all bags are one-and-done. If your vacuum seal bags were used to store dry goods, pre-cooked meals, or produce, they're generally safe to wash and reuse as long as they're still in good condition. To do it properly, wash the bags with hot, soapy water and let them air-dry completely. If your bags are marked "dishwasher safe," you can also put them on the top rack of your dishwasher to clean them."

Reusing vacuum-seal bags can save money and reduce kitchen waste, but safety depends on what the bag previously contained. Bags that held raw meat, fish, eggs, or soft cheeses can harbor bacteria such as salmonella, listeria, or E. coli that may survive even rigorous cleaning and pose a cross-contamination and foodborne illness risk. Bags that stored dry goods, pre-cooked meals, or produce can generally be washed with hot, soapy water or cleaned on the top dishwasher rack and air-dried. Discard or recycle bags with creases, discoloration, punctures, or diminished size to avoid broken seals and contamination.

Read at Tasting Table