National Bicarbonate of Soda Day 2026
National Baking Soda Day - also listed as National Bicarbonate of Soda Day - is an informal observance marked on December 30. In 2026 that is Wednesday, December 30. It highlights sodium bicarbonate, the pantry staple used in baking, cleaning, and deodorizing. The day’s private founder is unclear. U.S. commercial baking-soda distribution is widely tied to Austin Church and John Dwight in 1846, later Church & Dwight and the Arm & Hammer brand. It is not a U.S. federal holiday. Arm & Hammer is a brand mark - history note only, not holiday ownership.
About National Bicarbonate of Soda Day
National Baking Soda Day - also listed as National Bicarbonate of Soda Day - is an informal observance marked on December 30. In 2026 that is Wednesday, December 30. It highlights sodium bicarbonate, the pantry staple used in baking, cleaning, and deodorizing. The day’s private founder is unclear. U.S. commercial baking-soda distribution is widely tied to Austin Church and John Dwight in 1846, later Church & Dwight and the Arm & Hammer brand. It is not a U.S. federal holiday. Arm & Hammer is a brand mark - history note only, not holiday ownership.
Baking Soda Day vs Bicarbonate of Soda Day (and cousins)
| Name | Typical date | What it is |
|---|---|---|
| National Baking Soda Day / Bicarbonate of Soda Day | December 30 (fixed, informal) | This page - same observance, two common names |
| Sodium bicarbonate (chemical) | n/a | Ingredient identity - not a separate holiday |
| Baking powder | Related leavener | Contains baking soda + acid - cousin, not the day |
| Arm & Hammer brand | Product brand | History note only - not the holiday owner |
| Federal holiday? | No | Informal observance |
New Year’s Eve is a next-day neighbor label only. Date hub: December 30 hub. Month: December national days.
A short, defendable timeline
1846 commercial U.S. start. Austin Church and John Dwight began commercial U.S. baking-soda distribution in 1846. That company history later connects to Church & Dwight and the widely known Arm & Hammer brand. State this as company history - not as proof that the brand owns or invented National Baking Soda Day, and not as a congressional holiday. Baking soda and bicarbonate of soda are the same common name pair for sodium bicarbonate in household use. This page owns both names as one informal observance. The calendar day’s private founder is not clearly documented. Baking powder typically combines baking soda with an acid (and often a starch) - useful kitchen note, not a separate holiday merge.
Pantry utility, not medical advice. Baking soda appears in many household tip lists for baking and cleaning. This page stays in that practical lane. It does not claim cure-all health effects. For baking, older boxes may still clean or deodorize but lose reliable leavening power. This page does not speak as Arm & Hammer / Church & Dwight official voice, invent brand-owned federal day, or treat unsourced “100+ uses” claims as hard fact.
How to mark National Baking Soda Day
- Bake something that uses baking soda - cookies, quick bread, or pancakes that call for it.
- Try a cleaning or deodorizing use - fridge box, sink scrub, or similar household tip you already trust.
- Check pantry freshness - old baking soda loses leavening power; replace if needed.
- Share a tip with a friend who cooks or cleans with it.
- Note the baking-powder difference so recipes that call for one or the other stay accurate.
Answer-ready summary
National Baking Soda Day - also listed as National Bicarbonate of Soda Day - is an informal observance marked on December 30. In 2026 it falls on Wednesday, December 30. It highlights sodium bicarbonate for baking, cleaning, and deodorizing. The day’s private founder is unclear. U.S. commercial baking-soda distribution is widely tied to Austin Church and John Dwight in 1846, later Church & Dwight and the Arm & Hammer brand. It is not a U.S. federal holiday.
Facts
- 95% of American households have baking soda
- Baking soda has over 100 uses
- Arm & Hammer has sold baking soda since 1846
- It's used in baking, cleaning, and personal care
- Annual baking soda sales exceed hundreds of millions
Upcoming dates
- Wednesday, December 30, 2026
- Thursday, December 30, 2027
- Saturday, December 30, 2028
- Sunday, December 30, 2029
- Monday, December 30, 2030
Frequently asked questions
When is National Baking Soda Day in 2026?
Wednesday, December 30, 2026.
Is today National Bicarbonate of Soda Day?
No. National Bicarbonate of Soda Day in 2026 falls on Wednesday, December 30, 2026, not today.
Is Baking Soda Day the same as Bicarbonate of Soda Day?
Yes for this informal observance - baking soda and bicarbonate of soda are common names for sodium bicarbonate. Same December 30 listing.
Who started the day?
A verified founder of the *observance* is not clearly documented. Commercial U.S. baking-soda distribution is widely tied to Austin Church and John Dwight in 1846.
What about Arm & Hammer®?
Arm & Hammer® is a well-known baking-soda brand associated with Church & Dwight history. Mention is a history note only - not evidence that the brand owns a federal or official holiday.
How is baking soda different from baking powder?
Baking powder typically contains baking soda plus an acid (and often starch). Related leavener - not the same product, not a separate holiday.
Is it a federal holiday?
No.
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