Clumping due to moisture is a common occurrence but does not affect usability Typically, unopened packages of citric acid can be stored indefinitely as long as they are kept in a cool, dry place away from direct sunlight However, discoloration and an off smell indicate that citric acid has expired.
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In its powdered form, citric acid remains stable for years, particularly when stored correctly in a cool, dry environment, and within an airtight container
Upon opening, the acid maintains its potency, often up to five years, assuming proper storage conditions are followed.
It should keep its concentration if it's sealed appropriately In fact, there happens to be a paper freely available studying how the molar concentration in citric acid changes in long term storage (it doesn't) Generally, it's best to store citric acid in a cool environment The ideal temperature range is between 15°c and 25°c (59°f and 77°f)
This helps prevent any chemical reactions that could occur at higher temperatures If the temperature gets too high, citric acid can start to break down. Store citric acid in a cool, dry place away from direct sunlight and moisture This will slow down chemical reactions and prevent degradation
Store citric acid in its originally bottle or container undiluted
Keep the acid at a relative humidity of 50 percent and in a temperature range of 50 to 86 degrees fahrenheit. Despite its inherent stability, oxidation and microbial spoilage can degrade citric acid over time, leading to quality deterioration and potential health risks. Can citric acid go bad faster if exposed to air While exposure to air doesn’t necessarily make citric acid go bad faster, it can lead to clumping and a loss of quality.
