- Food is a kind of substance
- Louis pasteur discovered that heating the substance for a short time can kill the bacteria inside
- Therefore, heating food for a short time can kill the bacteria inside

- Heating food for a short time can kill the bacteria inside
- If the bacteria in food are killed , then the food will be stored longer
- So, heating food for a short time can help store foods for longer

Hence, heating food for a short time can help store foods for longer
Q: Louis Pasteur discovered that the bacteria in a substance can be killed by heating the substance for a short period of time. Which of these practices benefited most from Pasteur's discovery?
Context:
- Food is a kind of substance 
- If the bacteria in food are killed , then the food will be stored longer 
- Louis pasteur discovered that heating the substance for a short time can kill the bacteria inside