Problems

Mold in a jar – is it safe and what to do

If you see mold in a jar, the product is unsafe to consume.

StorageAttention level: High
Quick summary

If there is mold, do not consume the product.

What happened

Problem symptom

mold in jar

Risk
High
Category
Storage
What to check
presence of mold, smell, seal, and product condition
Why it happens

Main causes

  • Microbial contamination
    Mold develops when microorganisms enter the jar due to insufficient sterilization.
  • Air exposure
    Exposure to air due to poor sealing or storage conditions promotes mold growth.
What to do

Next steps

  1. 1

    Do not try to save the product

    Even if mold is only on the surface, toxins may be present throughout the product.

    Important
  2. 2

    Discard the product

    Dispose of the contents without tasting.

    Important
  3. 3

    Check other jars

    If one jar is spoiled, others from the same batch may also be at risk.

How to reduce the risk

How to avoid this problem next time

    FAQ

    Can you just remove the mold?

    No. Toxins may be present throughout the product.

    Why does mold appear?

    Due to air exposure or poor sterilization.

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