木质和塑料砧板各有利弊，在食品安全方面都存在需要注意的问题。[1]木质砧板虽然多孔，但可通过手洗和漂白消毒来清洁，食品安全专家Wade Syers建议使用浓度为50至100百万分之一的漂白水溶液（约1升冷水加2.5毫升家用漂白剂）进行消毒，随后直立风干。[1]相比之下，塑料砧板可以放入洗碗机清洁，但容易产生沟槽而藏匿微生物。[1]
更令人担忧的是塑料砧板释放微塑料的问题。[1]2023年的研究指出塑料砧板是"人类食物中微塑料的重要来源"，而2025年一项小鼠研究表明砧板塑料可能破坏肠道微生物群落，尽管人体相关数据仍不充分。[1]专家Christy Tyler指出微塑料的健康影响仍在研究中，但"有越来越多证据表明肯定不好"。[1]
为了降低食品污染风险，专家建议定期更换磨损砧板，并使用多块砧板分别处理生肉和蔬菜，以减少交叉污染。[1]
Food safety experts have weighed in on the ongoing debate between wood and plastic cutting boards, each presenting distinct health and hygiene considerations. While wooden boards are porous and require hand washing followed by bleach sanitization, plastic boards can be cleaned in dishwashers but develop grooves that harbor microorganisms over time [1]. A 2023 study identified plastic cutting boards as "a significant source of microplastics in human food," raising additional health concerns beyond traditional food contamination [1]. More recently, a 2025 mouse study suggested that plastic from cutting boards may damage intestinal microbiota, though comparable human research remains unavailable [1].
Experts recommend specific cleaning protocols to minimize risks. Food safety specialist Wade Syers advises that wooden boards should be hand washed, disinfected with bleach, and air-dried standing upright [1]. For bleach disinfection, a solution of 50 to 100 parts per million is recommended—approximately 2.5 milliliters of household bleach added to one liter of cold water [1]. Regarding microplastics, researcher Christy Tyler noted that health impacts are still under investigation, stating there is "mounting evidence suggesting it's definitely not good" [1]. Both material types can be made safer through regular replacement of worn boards and the use of multiple cutting boards to prevent cross-contamination between raw meat and fresh produce [1].