Food service
Should You Rinse Capers Before Using Them?
It depends on the format: brined capers — packed in a vinegar-salt liquid, the more common format on foodservice shelves — generally don't need rinsing unless a dish is sensitive to extra salt or acidity, since the brine flavour is part of the product. Salt-packed capers, cured and stored in coarse dry salt rather than liquid, do need a rinse or a short soak to remove the heavy salt coating before use, or a dish can turn unpleasantly salty fast. Knowing which format is on hand is really the first decision — the two aren't interchangeable one-for-one without adjusting for how they were preserved.
Capers packed in brine are ready to use straight from the jar for most applications, which is part of why the brined format is the more common choice for a kitchen wanting a grab-and-go pantry item.
Brined versus salt-packed handling
Brined capers sit in a vinegar-and-salt liquid that both preserves them and seasons them, so straight from the jar they carry a tangy, briny flavour that's usually exactly what a recipe calling for capers is after — no extra step needed beyond draining the liquid off. Salt-packed capers are cured differently, buried in dry salt rather than submerged in liquid, which draws out moisture and concentrates flavour but also leaves a heavy salt coating that has to be rinsed under cold water, or soaked briefly and drained, before the capers go into a dish. Mixing up the two — treating salt-packed capers like brined ones — is the most common way a dish ends up oversalted.
When rinsing brined capers still makes sense
Even with brined capers, a quick rinse is worth doing when a recipe is already salt-forward on its own — a sauce with anchovy, cured olives or a salty cheese, for instance — or when the dish is delicate enough that the vinegar tang of the brine would compete with a subtler flavour profile. A rinse in that case is about balancing the finished dish rather than any food-safety necessity; brined capers are safe to use straight from the jar, rinsing is purely a seasoning choice.
Adjusting seasoning after rinsing
Rinsing capers — brined or salt-packed — washes away some of their built-in seasoning along with the excess salt, so a dish built around rinsed capers usually needs its own seasoning added back separately rather than relying on the capers to carry the salt for the whole dish, the way un-rinsed capers can. It's worth tasting a dish partway through when using rinsed capers for the first time in a recipe, since the balance shifts noticeably compared with using them straight from the jar.
Related questions
Do capers need to be refrigerated once opened?
Yes — once opened, capers should be kept refrigerated and submerged in their brine, which keeps them from drying out or spoiling; a jar left unrefrigerated or with capers exposed above the liquid line won't hold as well.
Can rinsed capers be dried before use?
Patting them dry after rinsing is useful if they're going into a hot pan or a dish where extra moisture would be unwelcome, such as frying capers crisp for a garnish, but it isn't necessary for most cold or sauced applications. Frying dry capers briefly in hot oil until they crisp and pop open is itself a popular garnish, adding crunch and a concentrated caper flavour on top of a finished dish rather than folding them in whole.