​ Food-grade Microwave Containers Explained Simply | Bioleader®

Item Product Name Paper Weight Product Size (Top*Bottom*High) Pcs/ CTN Carton Size (cm) PE-SK500 500ml Square Bowl Kraft Paper 337gsm / White paper 320gsm 130 x 112 x 47 300 40 27.5 45 PE-SK650 650ml Square Bowl Kraft Paper 337gsm / White paper 320gsm 130 x 110 x 60 300 40 27.5 46.5 Lid Options PP Lid 8g 130 x 130 300 30 28 41.5 PET Lid 9g 130 x 130 300 33 28 41.5 PE-SK750 750ml Square Bowl Kraft Paper 337gsm / White paper 320gsm 170 x 148 x 44 300 52 35 57 PE-SK1000 1000ml Square Bowl Kraft Paper 337gsm / White paper 320gsm 170 x 146 x 56 300 52 35 57 PE-SK1200 1200ml Square Bowl Kraft Paper 337gsm / White paper 320gsm 170 x 145 x 66 300 52 35 58 PE-SK1400 1400ml Square Bowl Kraft Paper 337gsm / White paper 320gsm 170 x 143 x 75 300 52 35 58 Lid Options PP Lid 12g 170 x 170 300 55 37 34 PET Lid 16g 170 x 170 300 55 37 34 Film Coated Options PE(single) Single 18gsm PE (100% recyclable, this is the normal choice type) PE(double) Double 18gsm PE (available for ice, cold, and freezer) PLA Single 31gsm PLA (100% biodegradable & compostable) Lid Options for Paper, PP and PET For 1200–1400ml square paper salad bowls, PP lids are practical for takeaway, stacking, and transport stability when large salads, rice bowls, noodles, pasta, and cold meals need secure handling. PET lids improve product visibility for retail display, supermarket ready meals, deli counters, and grab-and-go meal bowls. The 170mm lid system fits 750ml, 1000ml, 1200ml, and 1400ml square bowls, while the smaller 130mm lids fit the 500ml and 650ml range. Bioleader® can match lid type by rim diameter, packing plan, artwork needs, and destination market requirements , ​ food-grade microwave containers.

Yes. Bioleader® supports OEM logo printing and private-label designs for 1300ml paper salad bowls and matching paper lids. Buyers can provide AI, PDF, CDR, or clear logo files. White paper is usually better for sharp full-color printing, while kraft paper is suitable for natural, minimal, and eco-style branding.

A 750-1000ml square paper salad bowl is designed for regular single-serve or meal-size portions. It is commonly used for salads, rice bowls, poke bowls, cold noodles, pasta, fruit portions, desserts, side dishes, and takeaway meals — ​ food-grade microwave containers. For buyers building a wider foodservice range, 750-1000ml square bowls can be paired with 500ml, 650ml, 1200ml, and 1400ml square paper bowls.

Polypropylene is a semi-crystalline polyolefin thermoplastic. Its molecular structure gives it a useful balance of low density, chemical resistance, moisture resistance, toughness and higher heat stability than many common cold-food plastics. PP can be injection-molded or thermoformed into thin-wall bowls, rectangular meal boxes, divided trays and matching lids. The resin grade, crystallinity, wall thickness, reinforcing ribs and molding conditions influence the finished product , ​ food-grade microwave containers.

PP ranks first because it has the most mature commercial position in microwave-ready disposable packaging. The USDA Glossary of Packaging Terms describes polypropylene as a resin used for microwave-only heating of foods with low fat and sugar content. That qualification is important: it confirms that PP is widely used for reheating while also showing why high-fat and high-sugar menus require additional evaluation.