Modern technology has allowed preserves to last even longer thanks to the invention of freezing and refrigeration. This enabled unopened preserves to last for years without spoiling, and for a few weeks when opened. An ingredient known as ‘gelatine’ has also replaced the traditional ‘pectin’ from normal fruit juice. This has given preserves a smoother texture that can be spread easily. Freezing and refrigeration has helped preserves to be mass produced and sent longer distances, further increasing their popularity across the globe.