How to Make Whey soda
Whey soda transforms the byproduct of cheese or yogurt making into a refreshing, probiotic-rich fizzy drink. The natural lactose provides fermentation fuel for a tangy, light beverage.
Category: Beverages · Method: Lactic Acid · Time: 2-5d · Difficulty: 1/5 · Yield: varies · Temp: 20-24°C
History
Fermented whey beverages have been consumed for centuries wherever dairy fermentation is practiced. They were valued for their nutritional benefits and refreshing taste.
Ingredients
- 4 cups Live Liquid Whey — Must be raw/unpasteurized whey from straining yogurt or making raw cheese. Do not use whey from boiled cheese processes (like Ricotta) as the heat kills the necessary lactic acid bacteria.
- 1 cup Fruit juice — Grape, apple, or berry
- 2 tbsp Honey — Optional, for sweetness
- 1 inch Ginger — Fresh, sliced
Equipment
- Glass jar
- Cheesecloth
- Swing-top bottles
- Fine strainer
Instructions
Combine ingredients
Mix live whey with fruit juice, honey, and ginger in a clean jar.
Time: 5 min
First ferment
Cover the jar with a breathable cloth or coffee filter secured with a rubber band. Ferment at room temperature (20-24°C) until tiny bubbles begin to form.
Time: 1-3 days
Strain and bottle
Strain out ginger and transfer the liquid into pressure-rated flip-top bottles. Leave 1-2 inches of headspace at the top.
Time: 10 min
Tip: Always use bottles specifically designed for carbonation to prevent shattering.
Carbonate (Second Ferment)
Seal the bottles and leave at room temperature to build carbonation. Check one bottle after 12 hours by gently 'burping' it to test pressure.
Time: 12-24 hours
Tip: WARNING: Carbonation can build rapidly. If the room is warm, check frequently to prevent bottle explosions.
Refrigerate
Once fizzy, move to the fridge. Chilling stabilizes the carbonation and prevents over-pressurization.
Time: 2+ hours
Fermentation Timeline
- Day 1: Start — Whey begins fermenting with juice.
- Day 2: Active — Tanginess increases, bubbles appear.
- Day 3: Bottle — Ready for carbonation phase.
Signs of Success & Spoilage
Good signs
- Light bubbling
- Tangy aroma
- Cloudy appearance
- Fruity-tart taste
Warning signs
- Off smell
- Mold
- Bitter taste
- No fermentation
Troubleshooting
- Too sour
- Cause: Over-fermented Solution: Shorten fermentation time.
- No fermentation/No bubbles
- Cause: Inactive whey or temperature Solution: Ensure whey was not heated above 45°C during cheese making. If whey is old or was boiled, the cultures are dead. Also, ensure the room is at least 20°C.
Storage
Refrigerate Keeps 1-2 weeks. Consume within a week for best fizz.
Health Benefits
- Probiotics
- Residual whey protein/Amino acids
- Calcium
- B vitamins
- Hydrating electrolytes
Serving Suggestions
- Cold refreshment
- Post-workout drink
- Breakfast beverage
- Mixed cocktails
- Smoothie base