Is it better to store spices in glass or plastic?

spice jar

The function of food containers is often overlooked in the pursuit of aesthetics that target consumer buying behavior. The truth is that food, and more specifically spices, are perishable, susceptible to light, and require special packaging to preserve freshness integrity. While some people store their spices in metal containers, form and function go hand in hand. While light can be disruptive, most spices are kept in cupboards, and clear or translucent jars are perfectly acceptable options. Labels aside, most people do like to see the decorative side of the spice and definitely know they're using nutmeg instead of chili in their holiday eggnog.

Light is not the only factor to consider when storing spices properly. Airtight containers are essential to ensure that all spices stay fresh for as long as possible. Metal is not included, the remaining two options are glass or plastic. While both materials are adequate, one is definitely better than the other. Expensive and high-quality spices are always stored in glass. Plastic can be porous, allowing a small amount of air to slowly destroy the fragrance. Every spice has a shelf life if stored and sealed properly, but glass will extend it significantly. Another benefit of glass containers is their interaction with the lid. While most caps are plastic, the jar's glass rim allows the cap and liner to seal more tightly. A final factor to consider is that plastics can develop leeches at extreme temperatures. Freezing or heating plastic containers can cause small particles to enter the product. The faint smell of plastic can ruin any flavor, including strong spices. While people often gravitate toward plastic because it's less brittle and easier to transport, the obvious choice for any food item is glass.

In conclusion, the factors to consider when storing spices in any environment are light and temperature control in an enclosed environment. Glass inherently creates a better seal, and storing spices in their original containers with seals will prolong life and provide the best flavor for all your culinary requirements.