Homemade Mineralized Sparkling Water (Oulmes-Style)
Oulmes is a natural mineral water with 314mg sodium per liter and natural carbonation. Contains no problematic ingredients or seed oils. DIY version allows control over water quality and mineral content while being significantly more economical.
Based on: Oulmes natural carbonated water
· Makes 20 liters of carbonated mineral water
· Serving: 1 liter
Why This Recipe is Seed Oil Free
Commercial Oulmes natural carbonated water from Les eaux minérales d'Oulmès S.A. often contains inflammatory seed oils like canola, soybean, or sunflower oil. This homemade version replaces them with healthier fats like butter, ghee, coconut oil, or avocado oil — giving you the same great taste without the processed oils.
Ingredients
Distilled water
20 liters · Distilled water from local grocery store or home distillation
Pure base water without chlorine or municipal additives that could interfere with mineral balance
Sea salt (unrefined)
16g (about 1 tablespoon) · Redmond Real Salt fine sea salt
Provides 314mg sodium per liter to match the original mineral profile
Instructions
Step 1. Measure 16g (1 tablespoon) of Redmond Real Salt into a small bowl. This amount will provide the correct 314mg sodium per liter across your entire 20-liter batch.
Step 2. In a large mixing container, dissolve the measured salt completely in 2 liters of distilled water, stirring vigorously for 2-3 minutes until no salt crystals remain visible. This creates your mineral concentrate.
Step 3. Add the remaining 18 liters of distilled water to your mineral concentrate and stir thoroughly. Taste should be very subtly salty - barely perceptible on the tongue, similar to natural mineral water.
Step 4. Transfer the mineralized water to your carbonation system bottles (typically 1-liter bottles for SodaStream-type devices). Leave 2-3 inches headspace for CO2 expansion.
Step 5. Carbonate each bottle according to your system's instructions - typically 3-5 pumps for SodaStream devices, or until you hear the CO2 release valve activate. Chill water to 38-42°F before carbonating for best CO2 retention.
Step 6. Test carbonation level by gently opening and tasting. Should have moderate fizz similar to commercial sparkling water. Add more carbonation if needed - Oulmes has medium-high carbonation levels.
Step 7. Store carbonated bottles in refrigerator immediately. Use within 3-5 days for optimal carbonation retention. Unopened bottles maintain carbonation for 1-2 weeks when properly sealed and chilled.
Storage
Store in refrigerator at 38-40°F. Carbonation will gradually dissipate - consume within 5 days of opening, 2 weeks unopened. Re-carbonate as needed using your home system.
Cost Comparison
Cost per serving (homemade)$0.05
Cost per serving (store-bought)$1.50
Savings97%
Initial equipment cost is $89.99, but ongoing cost per liter is dramatically lower. CO2 refills and minerals are the main recurring expenses, making this extremely economical long-term.