All About Dijon mustard
Your complete guide to dijon mustard - discover how to store it properly, identify when it's gone bad, and find the best substitutes for your recipes.
How Long Does Dijon mustard Last?
Storage times and freshness tips for dijon mustard in different conditions.
Safety first: This guide provides general information. When in doubt, throw it out! Trust your senses and err on the side of caution. If something smells, looks, or tastes off, don't consume it.
unopened pantry2-3 years from production date, or 1 year past 'best by' date
Signs of Spoilage
Bulging lid (indicating gas production from microbial activity), unusual and significant discoloration (e.g., very dark brown or grey), visible mold (rare in unopened jars but possible if the seal is compromised), leaks.
How to Check
Visually inspect the container for any signs of bulging or leakage. Check the 'best by' date. If the jar is clear, look for any obvious mold or extreme, uncharacteristic color changes.
Storage Tips
Store in a cool, dark, and dry place, away from direct sunlight or heat sources. The high acidity and salt content of Dijon mustard contribute to its excellent shelf stability when unopened.
opened fridge6-12 months
Signs of Spoilage
Visible mold growth (fuzzy spots of any color – white, green, black), significant dark discoloration or greyish hue, watery separation that does not stir back in, dried-out or overly thick consistency, off-smell (sour, yeasty, fermented, or rancid).
How to Check
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Visual Inspection: Look closely at the surface and sides of the mustard for any fuzzy mold, unusual dark spots, or excessive liquid separation.
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Smell Test: Open the jar and take a sniff. Fresh Dijon mustard has a pungent, vinegary, and sharp aroma. Any sour, yeasty, fermented, or unpleasant odor indicates spoilage.
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Texture Test: If visual and smell tests are clear, stir the mustard with a clean spoon. It should be relatively smooth and consistent. If it's extremely grainy, overly thick/dried out, or excessively watery and won't mix back together, its quality has degraded.
Storage Tips
Always use a clean utensil to scoop out mustard to prevent introducing contaminants. Ensure the lid is tightly sealed after each use. Store on an interior shelf of the refrigerator rather than the door, as door temperatures fluctuate more, which can impact shelf life.