Why do we say salt and pepper and not pepper and salt?

The phrase "salt and pepper" is commonly used in English due to historical and cultural conventions, where salt was often considered the primary seasoning essential for food preservation and flavor. The order reflects this importance, with salt typically being mentioned first. Additionally, the phrase has become idiomatic, reinforcing its usage in that sequence over time. As a result, "salt and pepper" has become the standard expression in culinary contexts.