In a Pickle
Some like their sour flavor. Others like their crunch. Whatever the reason, pickles are a favorite of many people.
The Back Story
- Pickles—and the process of pickling—have been around for thousands of years.
- Why? Pickling is a way of preserving foods. Before people had refrigerators and freezers to keep foods from spoiling, they had pickling.
- Understanding why pickling preserves foods depends on knowing a little bit of chemistry.
- You can learn how foods are pickled and the chemistry involved by watching this video: http://www.nbclearn.com/chemistrynow/cuecard/52647
Show What You Know
With the link below, learn more about the chemistry of pickles and pickling. Then answer the following questions.
- What are pickles?
- What are two ways of making pickles?
- What is pH, and what does it have to do with pickles?
- Why do pickles taste sour?
- Why does soaking food in brine make it crunchy?