Does lemon juice concentrate go bad?

Lemon juice concentrate does go bad over time, although it has a longer shelf life compared to fresh lemon juice. Here are some factors that can affect the spoilage of lemon juice concentrate:

1. Oxidation: Lemon juice concentrate, like fresh lemon juice, contains vitamin C and other compounds that are susceptible to oxidation. Exposure to air and sunlight can speed up the oxidation process, resulting in changes in flavor and color.

2. Microbial growth: Although the high acidity of lemon juice concentrate inhibits the growth of most bacteria, it's not entirely immune to spoilage caused by microorganisms. If the concentrate becomes contaminated with bacteria or mold, it can deteriorate and become unsafe for consumption.

3. Improper storage: Lemon juice concentrate should be stored in a cool, dark place to minimize the effects of oxidation and microbial growth. Once opened, it should be kept refrigerated and tightly sealed to prevent it from spoiling quickly.

To ensure the quality and safety of lemon juice concentrate, it's essential to adhere to the storage instructions provided on the product packaging. Typically, unopened lemon juice concentrate can last for several months when stored properly in a cool, dry place. Once opened, it's best to consume it within a few weeks to maintain its optimal flavor and quality.

If you notice any signs of spoilage, such as significant changes in color, off odors, or unusual flavors, it's best to discard the lemon juice concentrate to avoid any potential health risks.