Problems

Jars cracking during sterilization

Jars cracking during sterilization is a serious issue that can compromise food safety. Understanding the causes helps prevent it.

SterilizationAttention level: High
Quick summary

Do not use the product if the jar has cracked due to risk of glass contamination.

What happened

Problem symptom

Jars crack or break during sterilization.

Check
Check the lid condition and look for any leakage.
Evaluate
Evaluate smell after opening and overall appearance.
Review
Review whether there were mistakes in sterilization or temperature control.
Why it happens

Main causes

  • Thermal shock
    A sudden temperature difference between cold jars and hot liquid can cause glass to crack.
  • Glass defects
    Small cracks or chips weaken the glass and increase the risk of breakage.
  • Mechanical stress
    Pressure, impacts, or improper placement during sterilization can lead to cracking.
What to do

Next steps

  1. 1

    Do not use damaged jars

    Even small cracks can result in dangerous glass fragments.

    Important
  2. 2

    Control temperature changes

    Avoid sudden temperature changes during sterilization.

  3. 3

    Position jars correctly

    Ensure jars do not touch each other or the bottom surface directly without padding.

How to reduce the risk

How to avoid this problem next time

    FAQ

    Is it safe to eat?

    No, if the jar cracked, the product is unsafe.

    Why do jars crack?

    Usually due to thermal shock or glass defects.

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