blanch

verb

ˈblanch 

blanched; blanching; blanches

transitive verb

: to take the color out of

Age had blanched his hair.

: such as

a

cooking : to scald or parboil in water or steam in order to remove the skin from, whiten, or stop enzymatic action in (such as food for freezing)

blanch the asparagus in salted boiling water

b

: to bleach by excluding light

blanch the leaves of a plant

c

: to make ashen or pale

fear blanches the cheek

intransitive verb

: to become white or pale (as from shock or fear)

His face blanched with horror.

—often used figuratively to describe a reaction of shock or dismay that makes someone unwilling or reluctant to proceed

Civilians also saw benefits to the system but blanched when talk then included references to $300-plus user fees.

—Dan Fales

… the managers of the companies blanched at the expenditures necessary to retool factories.

—Charles C. Mann

blancher noun

Synonyms

• bleach
• fade
• brighten
• whiten

Examples of blanch in a Sentence

Blanch the potatoes before slicing them.

a cup of blanched almonds

She blanched and remained silent when the store owner accused her of taking the money.

Recent Examples on the Web

To get its fine and uniform texture, the almonds are first blanched, which means they have been boiled to remove their outer skin.2 Almond flour's protein and fiber content help promote satiety and can prevent overeating or mindless snacking between meals. —Lauren Panoff, Verywell Health, 12 June 2025

Note: The original recipe recommends blanching the diced celery in the boiling water for about 30 seconds, then draining and setting aside. —The Washington Post, San Diego Union-Tribune, 14 May 2025

The recipe, like many spinach dip recipes, calls for fresh spinach to be blanched and shocked. —Stacey Lastoe, Southern Living, 26 Mar. 2025

At its most basic, peanut butter consists of peanuts that are roasted and blanched, then ground into a thick, nutritionally dense spread. —Annie Peterson, Better Homes & Gardens, 26 Jan. 2025

Word History

Etymology

Middle English blaunchen, blanchen "to make white, whitewash, whiten (almonds) by parboiling them to remove the skins," borrowed from Anglo-French blanchir, blauncher "to turn white, whiten" (also continental Old French blanchir), derivative of blanc "white" — more at blank entry 1

First Known Use

14th century, in the meaning defined at transitive sense

Rhymes for blanch

• branch
• cranch
• ranch
• stanch
• tranche
• avalanche

Kids Definition

blanch

verb

ˈblanch 

1

a

: to take the color out of : bleach

b

: to scald in order to remove the skin from or whiten

blanch almonds

2

: to become white or pale

blancher noun