Fresh Parsley vs. Dried: How They Compare

Spoon for spoon, at equal flavor strength, a tablespoon of fresh parsley gives you about eight times the vitamin C and nine times the vitamin K of a teaspoon of dried, by our math from USDA’s figures.¹² It wins on flavor too. America’s Test Kitchen lists parsley among the herbs that are better fresh, because delicate herbs like it get much weaker when dried.³ Go fresh whenever you can. If dried is all you’ve got, use 1 teaspoon dried for 3 teaspoons fresh, since dried is still stronger by volume.⁴

Side by side

	Fresh parsley	Dried parsley
Plant	Petroselinum crispum	The same plant
Family	Apiaceae (carrot or parsley family)	Same
Native range	Northwest Africa and the Balkan Peninsula (Kew)	Same
Types	Curly and flat-leaved; PROSEA says flat-leaved is stronger flavored⁵	Usually not stated on the jar
Key aroma compounds	15 compounds in fresh leaves in one study, led by 1,3,8-p-menthatriene, pinene, myrcene, phellandrene and apiole⁶	Reduced by drying, more so at higher temperatures⁶
Essential oil	Less than 0.5% (Britannica)⁷	No figure found
Water	87.7 g per 100 g¹	5.89 g per 100 g²
Strength by volume	3 teaspoons	1 teaspoon⁴
Flavor	Mildly aromatic (Britannica); green, fresh and lightly bitter	Faint and hay-like
Best for	Garnish, salads, sauces, finishing hot dishes	Soups, stuffings and sauces that cook a while
Regulation	No herb-specific limit found	The EU caps pyrrolizidine alkaloids in dried herbs, parsley included, at 400 µg/kg⁸

For the plant itself, see parsley.

What drying does to parsley

A 2005 study in the Polish Journal of Food and Nutrition Sciences dried parsley leaves from 87–90% water down to 4–6% in two kinds of dryer, at 45 and 55 °C in a heat-pump dryer and at 55 and 65 °C in a cabinet dryer. The researchers found 15 volatile compounds in the fresh leaves, and both drying methods cut the amount of volatile compounds more as the temperature rose. Sensory panels found no significant difference in sensory tests,⁶ but the abstract doesn’t say whether fresh leaves were part of that comparison.

ATK fills in the kitchen side. Its tests found that delicate herbs, parsley among them, tend to have more volatile flavor compounds,⁹ and Danielle Lapierre’s guide puts parsley among the herbs that are better fresh because they’re much weaker in flavor when dried.³

Nutrients: per 100 grams vs. per serving

You’ll often read that dried parsley keeps its nutrients, or even concentrates them. Per 100 grams, the minerals really are more concentrated in dried parsley, because the water’s gone. But nobody uses 100 grams of dried parsley in place of 100 grams of fresh. The fair comparison is the amounts that substitute for each other: 1 tablespoon of fresh (3.8 g) against 1 teaspoon of dried (0.5 g), using USDA’s portion weights.¹²

Per	Vitamin C	Vitamin K	Vitamin A (RAE)	Iron	Potassium	Calcium
100 g fresh¹	133 mg	1,640 µg	421 µg	6.20 mg	554 mg	138 mg
100 g dried²	125 mg	1,360 µg	97 µg	22.0 mg	2,680 mg	1,140 mg
1 tablespoon fresh (3.8 g)	5.1 mg	62 µg	16 µg	0.24 mg	21 mg	5.2 mg
1 teaspoon dried (0.5 g)	0.6 mg	6.8 µg	0.5 µg	0.11 mg	13 mg	5.7 mg

The per-spoon rows are our math from USDA’s per-100 g values and portion weights. At equal flavor strength, fresh parsley gives you about eight times the vitamin C, nine times the vitamin K and some thirty times the vitamin A of the dried teaspoon; only calcium comes out about even. PROSEA’s own figure for dried parsley, 122 mg of vitamin C per 100 g, is close to USDA’s.⁵

Two cautions. The fresh and dried entries are separate USDA analyses, not one batch measured before and after drying, so they show what each product typically contains, not exactly what drying destroys. And at a teaspoon or a tablespoon, neither form is a major source of most nutrients. For vitamin K and warfarin, see parsley.

How much to use

Ratio (Attributed): NMSU Extension says 1 teaspoon of dried parsley equals 3 teaspoons of chopped fresh.⁴ The Spice House says to use about a third as much when you use dried parsley instead of fresh.¹⁰ Both match ATK’s general finding that 1 part dried to 3 parts fresh came closest to equal strength,⁹ LSU AgCenter’s rule of 1 tablespoon fresh to 1 teaspoon dried,¹¹ and Penn State’s rule for herbs in general.¹²

Dried for fresh: 1 teaspoon dried per tablespoon of fresh. You get the strength, not fresh parsley’s flavor.
Fresh for dried: 1 tablespoon fresh per teaspoon of dried. Fresh is the stronger-tasting choice at that ratio, so it can stand out more against other herbs.

When to use each

Fresh parsley is the default, for fish, meats, soups, sauces and salads. It’s one of the delicate herbs best added at the end of cooking, since long heat costs flavor and aroma. That covers gremolata, chimichurri, tabbouleh, salsa verde, parsley butter and any plate that needs some green on top. The stems are good in stocks, where you can strain them out.

Dried parsley works where it can soften in liquid and you only need a mild background note: soups, stuffings, meatballs and some dry rubs and blends. As a garnish, dried flakes add color but not much flavor.

Can one stand in for the other?

Fresh can always replace dried at 3 to 1. Dried in place of fresh is a weak swap wherever parsley is the main flavor or the garnish. There, chervil may do better; The Spice House calls it closely related to parsley but milder.¹⁰ Parsley substitutes ranks the options by job, and chervil vs. parsley compares the two.

What isn’t known

We found no study that clearly compares the taste of fresh and dried parsley; the 2005 drying study’s abstract doesn’t say whether its sensory test included fresh leaves.⁶
The nutrient comparison uses two separate USDA entries; we found no before-and-after drying analysis of the same parsley.
We found no shelf-life figure for dried parsley from a regulator or extension service. See how to dry parsley and how to store parsley.
We couldn’t trace the claim that dried parsley holds on to polyphenols and carotenoids because it’s dried soon after harvest; USDA’s vitamin A figure for dried parsley is far lower than for fresh.¹²

Dried herbs vs. fresh: the general rules for every herb.
Parsley, parsley substitutes and too much parsley?
Can you freeze parsley?
Italian vs. curly parsley, chervil vs. parsley and cilantro vs. parsley
Fresh dill vs. dried dill, dried vs. fresh tarragon and dried basil vs. fresh: more delicate herbs.

Parsley, fresh (FDC 170416), USDA FoodData Central. fdc.nal.usda.gov · Regulator ↩ ↩² ↩³ ↩⁴ ↩⁵
Spices, parsley, dried (FDC 170930), USDA FoodData Central. fdc.nal.usda.gov · Regulator ↩ ↩² ↩³ ↩⁴ ↩⁵
Danielle Lapierre, “When You Should Actually Use Dried Herbs (and Which Ones to Avoid)”, America’s Test Kitchen, 2022. americastestkitchen.com · Publication ↩ ↩²
In a Pinch Ingredient Substitution (E-131), New Mexico State University Cooperative Extension, 2016. pubs.nmsu.edu · Reference work ↩ ↩² ↩³
I.B. Ipor & L.P.A. Oyen, Petroselinum crispum, Plant Resources of South-East Asia (PROSEA). uses.plantnet-project.org · Reference work ↩ ↩²
“Preservation of flavour components in parsley (Petroselinum crispum) by heat pump and cabinet drying”, Pol. J. Food Nutr. Sci., 2005 (abstract). journal.pan.olsztyn.pl · Peer-reviewed ↩ ↩² ↩³ ↩⁴
“Parsley”, Encyclopaedia Britannica. britannica.com · Reference work ↩
Commission Regulation (EU) 2023/915, Annex I, section 2.4. eur-lex.europa.eu · Regulator ↩
“Science: Substituting Dried Herbs for Fresh”, America’s Test Kitchen. americastestkitchen.com · Publication ↩ ↩²
“The 8 Best Parsley Substitutes”, The Spice House, 2018. thespicehouse.com · Merchant ↩ ↩²
“Flavorful Herbs”, LSU AgCenter. lsuagcenter.com · Reference work ↩
Stacy Reed, “Preserving Herbs by Drying”, Penn State Extension, 2024. extension.psu.edu · Reference work ↩

Also drawn on

Petroselinum crispum, Plants of the World Online, Royal Botanic Gardens, Kew. powo.science.kew.org

Fresh Parsley vs. Dried: Flavor, Nutrients and How Much to Use