Pickling

High school (ages 12+)
Food & Cooking

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/pickling

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the historical origins?Practiced since ancient Mesopotamia, essential for long-distance travel and food security
2. What is the key microbial role (fermentation)?Lactic acid bacteria (LAB) produce lactic acid, lowering pH and contributing flavor
3. Why do we use salt and vinegar for pickling?Salt pulls water out of the food and germs, making it hard for them to grow. Vinegar makes the liquid very acidic, and most harmful bacteria can't survive in that environment.
4. How does pickling keep food from going bad?The salt creates high pressure that dehydrates germs, and the acid lowers the pH below 4.6, which stops them from multiplying. Together, they make the food safe and tasty.

Osmotic Pressure: The pressure that drives water movement across a semipermeable membrane from low to high solute concentration.
pH Scale: A logarithmic scale measuring the acidity or alkalinity of a solution, crucial for microbial stability.
Probiotics: Live microorganisms which, when administered in adequate amounts, confer a health benefit on the host.