Health authorities advise limiting the time traditional Midsummer foods remain at room temperature to a maximum of two hours. This recommendation applies to popular items like salmon, herring, and cheeses commonly served during the Swedish Midsummer celebrations. Leaving these foods out for extended periods increases the risk of bacterial growth and potential foodborne illness. The two-hour guideline is crucial for maintaining food safety, especially during warmer weather when bacteria proliferate more rapidly. Proper refrigeration is essential after this timeframe. Authorities emphasize prioritizing food safety to ensure a healthy and enjoyable Midsummer holiday for all.