Proveedores de envases de almacenamiento de alimentos de plástico

The choice of plastic material for food storage containers determines the product's food-contact compliance, temperature resistance, clarity, and recyclability. Polypropylene (PP) is the standard material for food storage containers — approved for food contact under EU Regulation 10/2011 and FDA 21 CFR 177.1520, microwave-safe (up to approximately 120°C depending on design), dishwasher-safe, and available in clear or opaque. Standard PP has a slightly milky clarity; PP random copolymer (PPRC) offers improved clarity. HDPE is used for containers requiring greater rigidity, chemical resistance, or low-temperature performance — less optically clear than PPRC but tougher. PS (polystyrene) provides excellent clarity and is lower cost, but is not microwave-safe and faces restrictions under EU Single-Use Plastics legislation and several US state bans. For markets requiring compostable containers, CPLA (crystallised PLA) is available for cold food and some ambient temperature applications. PP is the recommended specification for most B2B food storage container buyers.

Lid design is a key functional specification for food storage containers. Snap-on (push-fit) lids are the most common — simple and fast to open and close, suitable for general food storage where airtight sealing is not critical. Clip-lock (clip-lid) containers use two or four hinged clips that lock the lid down for an airtight or near-airtight seal — preferred for liquid-containing foods, meal-prep containers, and applications where leakage prevention is important. Screw lids (thread-lock) provide the most secure seal and are used for containers storing liquids or semi-liquids in distribution. Seal performance can be tested by the container test — fill with water, close, and invert. For food production and catering applications where liquid containment is critical, request a leak test specification and sample verification. Capacity range for B2B food storage containers: 200ml to 10L are common sizes; 500ml, 1L, 2L, and 5L are the highest-volume SKUs for foodservice and retail.

For any food storage container supplied into regulated markets (EU, UK, US, and most developed economies), the manufacturer must provide a Declaration of Compliance (DoC) confirming food-contact compliance for the material and colorants used. For EU buyers: Declaration of Compliance with EU Regulation (EC) 10/2011 on plastic materials and articles intended for food contact. For UK buyers: UK food contact materials regulations. For US buyers: FDA 21 CFR 177.1520 (PP) or 177.1520 (HDPE). For microwave-safe claims: confirm with the manufacturer that the specific product design has been tested and is safe for microwave use at the claimed temperature. For dishwasher-safe claims: confirm the temperature resistance and lid performance at 60–75°C wash cycle temperatures. Request sample product for a brief functional test before placing a large order.