Does adding a layer of oil help your tomato chutney last longer? Find out if this technique is effective for preserving it in the refrigerator.
1 Answer
Yes, tomato chutney can be stored with a layer of oil on top to extend its shelf life. The oil acts as a barrier, preventing air and mold from spoiling the chutney.
Detailed Explanation:
Adding a layer of oil to tomato chutney is a traditional preservation method. The oil creates an anaerobic environment, meaning it reduces the amount of oxygen available. This is crucial because many spoilage microorganisms, like mold and some bacteria, require oxygen to thrive. By depriving them of oxygen, the oil significantly slows down their growth, thus extending the chutney's shelf life. The type of oil used can also influence the flavor and preservation. Traditionally, mustard oil is used in some regions for its antimicrobial properties and distinct flavor. However, other neutral oils like vegetable oil or refined olive oil can also be used effectively. To properly store the chutney, ensure it's cooled completely after cooking. Then, transfer it to a clean, sterilized glass jar. Pour a thin layer of oil (about 1/4 to 1/2 inch) on top, ensuring it covers the entire surface of the chutney. Seal the jar tightly and store it in a cool, dark place or in the refrigerator.
Pro Tip:
Always use a clean spoon when taking chutney from the jar to avoid introducing contaminants that can spoil the entire batch.