Is Restaurant Takeout Safe from COVID-19?

The past year has seen a significant shift in our understanding of how the SARS-CoV-2 virus spreads. While initial concerns revolved around surface contamination, recent scientific evidence indicates that airborne transmission is the primary mode of infection. This means that the focus has shifted towards protective measures that prevent viral particles from entering the respiratory system.

Understanding Virus Transmission and Mask Effectiveness

As virologists now understand, the majority of cases are not the result of touching contaminated surfaces. Instead, the airborne transmission route poses the greatest risk. This is why masks have become pivotal in curbing the spread of the virus. However, not all masks are created equal. Cloth masks, despite their widespread use, do not provide sufficient protection because they allow viruses to pass through easily or even amplify their effects by breaking up micro-particles into smaller ones. In contrast, a three-layer paper mask can offer better protection but may still have gaps if not properly fitted. The CDC recommends wearing a second mask over a first one, with the objective of ensuring the edges fit snugly against the face and eliminate gaps.

For optimal protection, an KN85 mask can be considered, though there is no certifying body to ensure its efficacy. The gold standard would be a N95 mask, as there is a regulatory body to guarantee its quality. These masks are designed to filter out 95% of airborne particles, providing the highest level of protection against respiratory infections.

Takeout Safety and Direct Infection Risks

The primary concern with restaurant takeout is the packaging rather than the food itself. While the virus poses a risk, especially when it comes to airborne transmission, simply microwaving the food does not significantly reduce this risk. For instance, viruses like SARS, which was similar to SARS-CoV-2, can survive extreme temperatures and remain viable outside the host for extended periods. Therefore, while microwaving may help in sterilizing the food to a certain extent, it is not a foolproof method to ensure complete safety.

It's important to note that COVID-19 does not invade the body through the alimentary canal. This means that hand-washing and maintaining general hygiene remain crucial, especially in handling and preparing meals. Contamination during the takeout process, particularly from packaging materials, can pose a risk. Therefore, it is wise to be cautious with the bags and containers used for takeout meals, as they may be more prone to contamination.

Conclusion on Microwave Safety and Prevention Measures

While microwaving can help in potentially reducing surface contamination, it is not a definitive solution for eliminating the virus. The packaging material, such as the plastic containers and disposable bags, should be given careful attention. It would be prudent to handle packaging materials with gloves and thoroughly clean your hands before and after handling takeout food.

So, while the risk of contracting COVID-19 through takeout food is real, the steps of proper hand hygiene and cautious handling of packaging can significantly mitigate any potential dangers.