Vanilla is vanilla is vanilla, right? Not exactly, says John Harrison, the official taste tester for Dreyer’s, the top-selling brand of ice cream in the United States. Below, Harrison and his taste buds — which are insured for $1 million — decipher common vanilla verbiage found on ice cream containers.

Vanilla: Made from pure Madagascar vanilla beans.

Vanilla Flavored: Contains up to 50 percent artificial vanilla.

Vanilla Bean: Includes specks of vanilla bean to intensify flavor and enhance appearance.

French Vanilla: By law, this must contain at least 1.4 percent egg yolk — more than most vanillas. The result is a distinctive yellow color and a custardlike taste.

Double Vanilla: Made with twice as much vanilla as the original.

Slow Churned or Double Churned: The special processing results in a smooth, rich, creamy texture.