Quick Answer

Yes - hepatitis A virus can be killed by thorough cooking, but only if the food reaches a high enough internal temperature for long enough. Cooking is not a guarantee when food is heated unevenly, such as some shellfish, or contaminated after cooking. Hepatitis B and C are bloodborne viruses and are not a foodborne risk, so cooking does not apply to them.

  • Hepatitis A is a foodborne and waterborne virus; hepatitis B and C are not.
  • Thorough cooking can inactivate hepatitis A virus if heat reaches all parts of the food.
  • Short, uneven, or low-temperature cooking may leave hepatitis A virus infectious.
  • Cooking does not treat hepatitis A infection once a person is already infected.
  • Food can be contaminated with hepatitis A after cooking, such as by an infected handler.
  • Freezing does not reliably kill hepatitis A virus; it can survive cold temperatures.

Context Most Pages Skip

Hepatitis A virus is a non-enveloped virus, which helps it survive stomach acid, drying, and cold storage. Cooking works by denaturing the proteins that form its outer shell, but this only happens when heat penetrates the food evenly and long enough. Many outbreaks trace back to cold foods, raw shellfish, or food handled after cooking, where heat never reaches the virus. Hepatitis B and C are different: they spread through blood and sexual contact, not through food, so cooking is not a prevention step for them. Understanding that difference matters, because the complications and long-term risks of these three viruses are not the same.

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⚕️ This page is educational and does not replace advice from a licensed clinician. If you may have been exposed to an STI, get tested — most infections are manageable, and many are fully curable.

Sources & Further Reading

Figures reflect CDC surveillance and WHO estimates; they are population statistics, not personal risk predictions.