Mustard Seed

Store whole seeds in an airtight container in a cool, dark, dry place. Ground mustard loses potency faster (6–12 months). Keep away from heat and humidity.

Toast whole seeds in a dry pan for 1–2 minutes before grinding to deepen their flavor

Whole seeds work best in pickling, tempering (Indian cooking), and curry blends

Ground mustard is more convenient for spice rubs, dressings, and sauces

Add whole seeds near the end of cooking or they may burn and turn bitter

Mustard seeds absorb flavors from their neighbors; store separately if possible

Pickled vegetables, cabbage, onions

Curries, dals, and tempering blends

Charcuterie, cured meats, sausages

Vinaigrettes, mayonnaise, and condiments

Root vegetables, cruciferous vegetables

Lentils and split peas

Using ground mustard past its shelf life—it loses heat and aroma quickly

Burning the seeds during toasting, which makes them acrid rather than nutty

Skipping the tempering step (blooming in hot oil) common in South Asian cooking, which awakens their flavor