Is boiling milk necessary to kill bacteria and make it safe for consumption?
Store-bought milk is already pasteurized, so it does not need boiling. For raw milk, Ireland's food safety authority advises boiling it first, while Oregon State Extension says home pasteurizing means heating to 161°F for 15 seconds, or 145°F for 30 minutes, with a thermometer.
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In this article
Do you need to boil pasteurized milk?
No. The CDC describes pasteurization as heating milk to a high enough temperature for a certain length of time to remove disease-causing germs. Milk sold as pasteurized has already had this treatment.
Is it safe to boil raw milk?
The Food Safety Authority of Ireland (FSAI) advises people not to drink raw milk without boiling it first, and says you can boil the milk. The FSAI page names germs that can be in raw milk (STEC, Salmonella, Campylobacter, Listeria monocytogenes) but does not list which germs boiling kills.
What temperature kills bacteria in milk?
Oregon State University Extension gives two home methods for raw milk, both with a cooking thermometer:
- Stove top or microwave: heat to 161°F and hold it for 15 seconds, then cool quickly.
- Lower temperature: heat to 145°F and hold it for 30 minutes.
It warns that temperatures under 145°F will not kill harmful bacteria. It also notes that pathogens can be present even in raw milk produced with good sanitation.
The CDC position on raw milk
The CDC says raw milk can carry germs such as Campylobacter, E. coli, Listeria and Salmonella, and that good farm practices cannot guarantee safety. Pasteurized milk offers the same nutritional benefits without these risks.
What we could not confirm
We found no official source on how long to boil milk, what a long boil does to it, or whether boiling makes spoiled milk safe. Do not drink milk that smells or tastes off. If you are pregnant, elderly, or have a weak immune system, ask a doctor.
People also ask
Does boiling milk kill bacteria?
The Food Safety Authority of Ireland advises boiling raw milk before drinking it. Oregon State Extension gives heating to 161°F for 15 seconds as a home pasteurizing method.
Is it safe to boil milk?
Heating milk is the way to make raw milk safer, per FSAI and Oregon State Extension. Commercially pasteurized milk does not need it. The sources we read do not discuss harm from boiling.
Does boiling raw milk make it safe?
Heating to the right temperature kills harmful bacteria, but the CDC says raw milk can carry serious germs and pasteurized milk avoids that risk.
Sources
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