Guide To High Quality PLA Cups: Materials, Standards & Best Practices | Bioleader® Insights

A 500ml rectangular paper salad bowl is designed for compact single-serve portions — high quality PLA cups. It is commonly used for salads, rice bowls, sushi-style meals, cold noodles, desserts, side dishes, and light takeaway meals. For buyers building a wider rectangular bowl range, 500ml can be paired with 650ml, 750ml, and 1000ml rectangular paper bowls , high quality PLA cups.

Item Product Name Paper Weight Product Size (Top*Bottom*High) Pcs/ CTN Carton Size (cm) PE-RK500 500ml Rectangle Bowl Kraft Paper 337gsm / White paper 320gsm 173 x 121 x 41 300 52 26 46 PE-RK650 650ml Rectangle Bowl Kraft Paper 337gsm / White paper 320gsm 173 x 121 x 52 300 52 26 47 PE-RK750 750ml Rectangle Bowl Kraft Paper 337gsm / White paper 320gsm 173 x 121 x 57 300 52 26 46 PE-RK1000 1000ml Rectangle Bowl Kraft Paper 337gsm / White paper 320gsm 173 x 121 x 75 300 52 26 47 Lid Options Paper Lid Kraft / White 173 x 121 300 65 27 54 PP Lid 9g (microwaveable for hot) 173 x 121 300 39.5 38 41 PET Lid 11.5g (clear transparent for cold) 173 x 121 300 39.5 38 41 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 1000ml rectangular paper salad bowls, paper lids support a consistent kraft or white paper packaging appearance for salad shops, cafés, catering brands, and eco-style foodservice programs. PP lids are practical for hot food handling, microwaveable use, stacking, and transport stability when large rice bowls, noodles, and takeaway meals need secure closure. PET lids provide clear visibility for cold salads, sushi-style meals, deli displays, supermarket ready meals, and grab-and-go food. For buyers comparing plastic-reduction packaging technologies, our water-based coated paper bowls with lids page provides a useful reference for coating structure, lid matching, and manufacturer supply capability.

Paper lids are recommended when the buyer wants a consistent kraft or white paper packaging appearance. PP lids are practical for hot food handling, microwaveable use, stacking, takeaway, and delivery. PET lids are suitable when product visibility is important for chilled salads, sushi-style meals, supermarket display, and grab-and-go food programs.

PLA stands for Polylactic Acid, a biodegradable polyester derived from renewable plant resources. Instead of oil, PLA is made by fermenting sugars from corn starch, sugarcane, cassava, or other biomass into lactic acid, which is then polymerized into plastic​​. The result is a bioplastic resin that can be molded into products like cups, lids, or straws. PLA looks and feels like conventional petroleum-based plastic but is fully compostable under the right conditions — high quality PLA cups.

Studies have shown that producing PLA cold drink cups generates 60% less CO₂ emissions compared to petroleum-based plastics like PET and polystyrene.