Beach meals, countryside picnics, barbecues and other outdoor gatherings are common during summer weekends and holidays. However, hot weather also increases the risk of food contamination and promotes the growth of microorganisms. For this reason, extra attention to food safety is especially important at this time of year. Several illnesses are caused by the consumption of food or drinks contaminated by microorganisms or by the toxins they produce. In most cases, they cause digestive symptoms such as nausea, vomiting, abdominal pain, diarrhea and general discomfort, and recovery usually occurs within a few days without complications. However, depending on the microorganism involved and the individual characteristics of the affected person, more serious illness and complications may occur. The risk is higher in vulnerable groups such as children, older adults, pregnant women, people with chronic diseases and individuals with weakened immune systems. Therefore, in addition to the usual precautions for ensuring food safety at home hot weather calls for increased vigilance and a number of additional preventive measures. At any outdoor meal Plan your meal in advance , considering transportation conditions and the options available for keeping food safe once you leave home. Choose foods that are less perishable if adequate refrigeration cannot be guaranteed. Remember that perishable foods should not remain at room temperature for extended periods, especially in hot weather. The longer these foods remain outside the appropriate storage temperature, the greater the risk of disease-causing microorganisms multiply. Apply to drinks the same precautions s you do to food, particularly if they contain perishable ingredients such as milk, cream, eggs or fresh fruit. Wash your hands before handling food and before eating. If you are going to a location without access to tap water, bring enough safe drinking water for handwashing also or use a suitable hand sanitizer. The absence of visible changes does not guarantee that food is safe to eat. Many disease-causing microorganisms do not alter the appearance, smell or taste of food. Therefore, if you have any doubts about the safety of a food or drink, especially if it has not been stored under appropriate conditions, do not consume it. At the beach and on picnics Bring only the amount of food needed for the planned meal and package it appropriately according to the type of food. Transport food in cool boxes, insulated containers or thermal bags with ice packs. Never leave cool boxes or food inside parked vehicles. Once you arrive, keep them in the shade and protected from insects, sand and other potential sources of contamination. Keep the cool box closed as much as possible to maintain its temperature. Do not leave food or drink containers open and exposed to heat or potential contaminants. Wash or sanitize your hands before handling, preparing or consuming food. Avoid eating food that has been left outside the cool box or about which you have any doubts. At barbecues Barbecues require special attention because they combine several factors that increase the risk of food contamination: Handling raw foods; Cooking outdoors; High temperatures; In some cases, extended periods without adequate refrigeration. Therefore: Keep meat, fish and other perishable foods refrigerated until the time you are going to cook it. If transport is necessary, use closed containers and ensure adequate refrigeration. Use separate utensils and plates for raw and cooked foods. Wash your hands thoroughly before and after handling raw foods. Prevent raw foods juices from coming into contact with cooked or ready-to-eat foods. Do not place cooked foods on plates or containers that previously held raw foods. Keep salads, sauces, desserts and other foods refrigerated, in cool boxes with ice packs or as protected from heat as possible until they are served. Cook food immediately before the meal to avoid leaving prepared foods at room temperature for long periods. Prepare only the amount needed for the meal to minimize leftovers. If leftovers remain, refrigerate them promptly under appropriate conditions. Seek medical advice Seek medical attention if you suspect an infection related to contaminated food or drinks and symptoms do not improve, or if the situation: Occurs in children, older adults, pregnant women, people with chronic diseases or individuals with weakened immune systems; Is accompanied by signs of dehydration, inability to drink fluids, fever, persistent nausea or vomiting, or other unusual symptoms. Always remember Contaminated food or drinks may still look, smell and taste normal. Food safety should not be judged solely by what your senses can detect. Consider the conditions in which the food or drink has been stored and handled. When in doubt, it is safer not to consume it. The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item. English translation generated with AI and reviewed by the editorial team
