NATIONAL DAYFOOD & DRINK

Sourest Day

Embrace the tangy and tart on this special day, celebrate the joy of sour flavors!

OCT25

Sunday, October 25Every year on October 25

days to go

Roots: Created in 1977 by Richard Ankli of Ann Arbor, Michigan
Vibe: Fun, playful, and adventurous
Also on Oct 25: World Knee Day · World Opera Day · World Pasta Day
Hashtag: #SourestDay

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3 ways to celebrate

AT HOME

Try the sour challenge

Line up the sourest candies and see how far you get.

WITH FRIENDS

Host a sour taste-off

Everyone brings something sour. Vote for the most puckering.

AT WORK OR SCHOOL

Swap sour snacks

Trade sour gummies and candies with coworkers at break.

Plan ahead

Sourest Day is observed on October 25 every year. Here is where it lands for the next ten years, handy for planners, marketers and party people.

2026Sun, Oct 25this year

2027Mon, Oct 25

2028Wed, Oct 25

2029Thu, Oct 25

2030Fri, Oct 25

2031Sat, Oct 25

2032Mon, Oct 25

2033Tue, Oct 25

2034Wed, Oct 25

2035Thu, Oct 25

2036Sat, Oct 25

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Fast facts

Created as a humorous counterpoint to Sweetest Day

Lemons contain 5-6% citric acid

The story

Sourest Day celebrates the joy of all things sour, offering a unique opportunity for food enthusiasts and families alike to explore tangy and tart flavors. From the pucker of a lemon to the zing of a sour candy, this day is dedicated to those who appreciate the more acidic side of life. It falls on October 25, right after Sweetest Day, when sour flavors can be highlighted in various dishes and treats.

Read the full story

Sourest Day was created in 1977 by Richard Ankli of Ann Arbor, Michigan, as a humorous counterpoint to Sweetest Day. However, it reflects a growing trend in culinary exploration where sour flavors have become increasingly popular. Chefs and home cooks alike are experimenting with sour ingredients, integrating them into both traditional and innovative recipes, ultimately leading to a day that champions these bold tastes.

Celebrating Sourest Day can involve a range of activities that encourage individuals to engage with sour foods. Families might gather to create homemade sour treats, while friends could host tasting parties featuring an array of sour candies and dishes. The playful nature of this day allows participants to share their experiences and reactions to sour flavors, often resulting in laughter and memorable moments.

Whether you're a fan of sour patch kids, tangy lemonade, or pickled vegetables, Sourest Day offers something for everyone. It encourages a spirit of adventure and exploration in the kitchen, pushing individuals to step outside their culinary comfort zones. So gather your loved ones, share a sour treat, and celebrate the delightful tanginess that makes life just a little more interesting.

Did you know?

Sour Candy Popularity

Sour candy challenges are a popular way to celebrate the day.

Citric Acid

Citric acid, found in citrus fruits, is responsible for their sour taste.

Sourness in Foods

Sour flavors can enhance sweetness and balance dishes.

Sour in Cultures

Many cultures embrace sour flavors, from kimchi to sourdough.

Culinary Trend

Sour flavors are a growing trend in modern gastronomy.

Sour Beer

Sour beers have gained popularity among craft brewers.

Sour Grapes

The phrase 'sour grapes' originates from Aesop's fables.

Around the world

Every culture celebrates a little differently.

USNorth AmericaIn the United States, Sourest Day is celebrated with various sour foods and drinks.
GBEuropeEuropean countries enjoy sour flavors in traditional dishes and desserts.
JPAsiaAsian cuisines often incorporate sour elements, like in Thai cuisine.
AUAustraliaIn Australia, sour candies are a popular treat among children.
CACanadaCanadians celebrate with sour pies and candies.
BRSouth AmericaSour fruits are used in many traditional South American recipes.