Baking Soda vs Baking Powder: Key Differences, Uses & Kitchen Tips

Every Indian kitchen has its share of mysteries — like why the pressure cooker whistle sounds louder during exams, or why chai always tastes better at the neighbor’s house. But one puzzle that keeps popping up is: “Do I use baking soda or baking powder?”

Baking Soda is the solo performer. It’s pure sodium bicarbonate (NaHCO₃), and it only comes alive when paired with something tangy — think lemon juice in nimbu pani, curd in dhokla, or vinegar in pakoras. Without that acidic partner, it just sits in the batter like a shy guest at a wedding.

Baking Powder is the full orchestra. It already has acid mixed in, so it can puff up your cakes and biscuits without needing lemon or curd. That’s why your bakery‑style sponge cake rises beautifully even without a squeeze of nimbu.

Baking Soda is also called “cooking soda”. They are chemically the same compound but prices vary by branding and packaging. In different regions, it’s also known as Meetha Soda, Khane ka Soda, Saji na Phool, Soda Uppu, and Appa Soda.

Typically, branded baking soda is cheaper (₹20–₹40 per 100 g), while “cooking soda” sold in smaller packs or specialty labels can cost much more (₹100–₹170 per 100 g). 

Where to use what

Baking Soda:

• Gujaratis know the trick — add a pinch of soda with curd to get that fluffy, spongy texture for dhoklas.
• A dash of soda makes onion bhajiyas crispier.
• Chaat vendors often use soda in bhature dough for that airy bite.

Baking Powder:

Many home bakers in India swap soda for powder or vice versa, leading to cakes that are either flat like parathas or volcano‑like eruptions. It's baking powder for cakes and items that need quick leavening — for giving fluffiness to muffins, biscuits, and even shortcuts for idli/dosa batters when fermentation is slow. It’s not traditional in most Indian recipes, but it’s become a handy tool for busy households and bakeries.

Think of it this way:  

- Baking soda is the friend who says, “I’ll only dance if you play my favorite song.”

- Baking powder is the friend who jumps on the dance floor no matter what’s playing.  

So next time you’re baking or frying, remember: soda for tangy Indian recipes, powder for all‑purpose fluff. And if you mix them up? Don’t worry — in India, even a flat cake finds its destiny as a sweet paratha with jam. 

INS Codes

In the international food additive classification system known as INS — International Numbering System for Food Additives, the numbers are grouped by function. The 500 series is reserved for acidity regulators and raising agents. Sodium bicarbonate falls neatly into this category, hence INS 500.

Under FSSAI regulations, food labels often list “INS 500” instead of just “baking soda,” ensuring consistency with international standards. 

On food labels, you’ll often see “Baking Powder (INS 500, INS 341, INS 450)” — listing the codes of its active ingredients. As Baking powder is a mixture of sodium bicarbonate plus acid salts and starch, so its components can vary & they carry different INS numbers such as INS 500(ii), INS 341, INS 450, INS 541, etc.

INS Codes of typical Baking Powder components -

• Sodium bicarbonate → INS 500(ii)
• Monocalcium phosphate → INS 341(iii)
• Sodium acid pyrophosphate → INS 450(i)
• Sodium aluminum phosphate → INS 541(i)
• Potassium bitartrate (cream of tartar) → INS 336
• Tartaric acid → INS 334
• Calcium carbonate → INS 170(i)
• Calcium silicate → INS 552 (used as anti‑caking agent)

Fun facts

In India, if you walk into a grocery store and ask for “soda”, you'll be handed cooking soda/baking soda. In the U.S., the term “soda” almost always means soda pop (soft drink), so if you casually say “soda,” people there might think you’re talking about Coke or Pepsi.