If something is hard and makes a loud sound when you eat it, consider using the adjective, "crispy." This word is similar to "crunchy." Sometimes the opposite of "mushy" (yesterday’s Word of the Day) is "crispy."
These crackers are light and crispy.
My cereal isn’t crispy anymore. Now it’s soggy.
Everyone loves crispy potato chips. Keep the bag closed when you finish eating them or else they’ll go stale.
Many Americans like to eat junk food that is crispy and crunchy.
Rice cakes are crispy.
The word "crisp" is almost the same as "crispy," but it can be used for things other than food.
These crackers are very crisp.
The lettuce in this salad is crisp.
Apple crisp is a popular dessert. (The word "crisp" is a noun in this sentence.)
The air in late October feels cool and crisp.
The man paid for his meal with a crisp 100-dollar bill. (Newly-minted money is "crisp" because of the way it sounds and feels in one’s hand.)
The word "crispiness" is a noun.
These crackers have lost their crispiness.
To retain their crispiness, crackers must be kept in an airtight container.