• March 19, 2026

The History of Lock&Lock: How a Korean Brand Revolutionized Food Storage

Meta Description: Explore the fascinating history of Lock&Lock and how their airtight containers changed food storage forever, from plastic beginnings to glass innovations.

When you hear "airtight food storage," one name often comes to mind: Lock&Lock. This Korean brand revolutionized how the world stores food, and their journey from plastic pioneers to glass innovators offers valuable lessons about quality and adaptation.

Humble Beginnings

Lock&Lock was founded in 1978 in South Korea, initially manufacturing simple plastic household products. The company name comes from the locking mechanism of their containers—a system that "locks" and "locks" again for complete security.

The Airtight Revolution

Before Lock&Lock, food storage containers offered limited sealing. Their patented four-sided locking system created true airtight seals, keeping food fresher longer. This innovation catapulted the brand to global success .

Expanding into Glass

Realizing consumers' concerns about plastic, Lock & Lock has expanded into glass food storage containers. Their third-generation rectangular heat-resistant glass food storage box represents years of research and development. It is made of borosilicate glass, can withstand temperatures up to 400 degrees, and can be used in ovens, electric cookers, and microwaves.

Design Recognition

Lock&Lock's glass containers earned prestigious recognition. The third-generation rectangular heat-resistant glass food storage container won the 2011 German Red Dot Design Award, recognizing its outstanding performance in product design. This award validates their commitment to both functionality and aesthetics.

Patented Features

Lock&Lock has developed proprietary technology for its glass series. The patented ring lock design creates a four-sided seal, providing excellent preservation. This ensures that even containers filled with liquids can be safely transported without leaking.

Safety Certification

Quality requires verification. Lock&Lock products undergo rigorous testing, earning SGS certification and meeting FDA/LFGB food contact standards . These certifications assure consumers that containers are safe for food storage.

Lid Innovation

One of Lock&Lock's most significant contributions is lid technology. Their containers are equipped with silicone sealing rings, which create an airtight seal while still being removable for thorough cleaning. The company offers a lifetime warranty on the lid, demonstrating confidence in its product.

Global Expansion

Today, Lock&Lock products are available worldwide. Their glass containers appear on shelves from Seoul to San Francisco, trusted by millions of households. The brand has become synonymous with quality food storage.

Adapting to Consumer Needs

Lock & Lock continuously develops based on consumer feedback. When they noticed that users' demands for healthy eating and kitchen aesthetics were rising simultaneously, they developed new products addressing these concerns.

Environmental Commitment

As sustainability gains importance, Lock&Lock has committed to reducing environmental impact. Glass containers, being infinitely recyclable, align with this commitment. The durability of their products means fewer replacements and less waste.

The Legacy Continues

Lock&Lock's journey from Korean startup to global leader demonstrates the power of innovation and quality. Their glass food storage containers carry forward the brand's commitment to keeping food fresh, safe, and accessible.