Group 1 - Tofu is a traditional Chinese food with high nutritional value, containing 6% to 12% protein and beneficial plant sterols that help block cholesterol absorption [1] - Tofu varieties include South tofu, North tofu, sour tofu, and lactone tofu, each differing in texture and cooking suitability [1] - Recommended daily consumption of tofu is between 100 grams to 150 grams to avoid digestive issues and increased kidney burden [1] Group 2 - Fresh tofu can be stored at room temperature for up to 7 hours, while factory-packaged tofu should be consumed before the indicated expiration date [2] - Blanching tofu in salt water before refrigeration can extend its shelf life to about two days and enhance its flavor [2] - Tofu that becomes sticky should not be consumed, as it indicates bacterial growth that cannot be eliminated by rinsing [2] Group 3 - Benzoic acid and its sodium salt are commonly used preservatives in the food industry, but their excessive consumption can lead to liver toxicity [3] - The use of artificial coloring agents like lemon yellow in tofu is prohibited, as it can pose health risks if consumed in excess [3] - Aluminum-containing food additives are regulated in tofu production, with a maximum residue limit set to prevent health issues related to long-term exposure [4]

Summary of Key Points Core Viewpoint The announcement from the Fuzhou Economic and Technological Development Zone Market Supervision Administration reveals the results of food safety supervision and sampling inspections for 2025, indicating that out of 88 batches tested, 86 were qualified while 2 were found to be unqualified. The local authorities have been instructed to investigate and address the non-compliance issues to mitigate food safety risks [2]. Group 1: Inspection Results - A total of 88 batches were tested, with 86 passing and 2 failing the safety standards [2]. - The local market supervision authorities are mandated to investigate the producers of the non-compliant food items and enforce legal actions against violations [2]. Group 2: Non-compliance Details - The non-compliant items included excessive levels of dehydroacetic acid and its sodium salt, which is a broad-spectrum food preservative. It is noted that this substance can be harmful if consumed in excessive amounts over time [3]. - The primary reasons for non-compliance were identified as the overuse of food additives by some producers to prevent spoilage, or inaccuracies in measurement during the additive incorporation process [3]. Group 3: Consumer Advisory - Consumers are advised to report any unqualified food products listed in the announcement by calling the complaint hotline 12315 [4].