过年买菜囤肉，别再带着塑料袋放冰箱！（附食材保鲜妙招）

Group 1 - The article emphasizes the importance of a proper purchasing sequence for New Year goods to ensure food safety and quality [1][3] - Recommended purchasing order: packaged foods first, followed by fresh produce, cooked foods, and finally frozen products [1][3] - It highlights the risks associated with improper storage and handling of food items, particularly in winter conditions [3][5] Group 2 - Two types of New Year goods are advised against: bulk frozen meatballs due to contamination risks and large mixed nut containers that can lead to oxidation and spoilage [5][6] - For frozen meatballs, it is suggested to choose those with complete packaging for better hygiene and nutritional information [5] - For mixed nuts, purchasing individually sealed packages is recommended to maintain freshness and prevent exposure to air [5][6] Group 3 - The article warns against storing groceries in plastic bags directly in the refrigerator, as this can pose health risks due to harmful substances in non-food-grade plastics [6][7] - It categorizes plastic bags into food-grade and non-food-grade, explaining the potential dangers of using the latter for food storage [6] - It advises using specialized preservation tools instead of plastic bags to avoid creating health hazards in the refrigerator [6] Group 4 - Specific storage tips for various food items are provided: leafy greens should be dried and stored in a breathable bag, root vegetables can be kept in a cool, dry place, and tropical fruits should not be refrigerated [7][8][9] - Berries should be stored in ventilated containers with absorbent materials to prevent spoilage, while apples and pears should be kept separate to avoid ripening other produce [10] - The article concludes with a reminder to follow scientific purchasing and storage practices for a safe and healthy New Year celebration [10]