Kirkland Signature Purified Water is already remarkably clean with only essential minerals added for electrolyte balance and taste. No seed oils or problematic ingredients present. DIY version allows you to control water quality and mineral ratios while using certified organic mineral sources.
Based on: Purified Drinking Water
· Makes approximately 48 servings (24 bottles worth)
· Serving: 16.9 fl oz (500ml)
Why This Recipe is Seed Oil Free
Commercial Purified Drinking Water from Kirkland Signature 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.
The original Purified Drinking Water may also contain artificial dyes. Check it on DyeFreeCheck to find out.
Ingredients
Distilled Water
24 liters (6.3 gallons) · Mountain Valley Spring Water Distilled or home distillation system
Pure base water free from chlorine, fluoride, and contaminants found in tap water
Potassium Bicarbonate
4.8g (1 teaspoon) · Prescribed For Life Food Grade Potassium Bicarbonate
Primary electrolyte that supports nerve function and pH balance
Sodium Bicarbonate
2.4g (1/2 teaspoon) · Bob's Red Mill Baking Soda (aluminum-free)
Alkalizing agent that balances acidity and provides sodium electrolyte
Calcium Citrate
2.4g (1/2 teaspoon) · Now Foods Calcium Citrate Powder
Bioavailable calcium source for bone health and muscle function
Sea Salt
1.2g (1/4 teaspoon) · Redmond Real Salt (unrefined)
Natural source of sodium chloride plus trace minerals
Magnesium Oxide
1.2g (1/4 teaspoon) · Pure Encapsulations Magnesium Oxide Powder
Essential mineral for muscle and nerve function, gentle alkalizing effect
Instructions
Step 1. Start with 24 liters of distilled water in a large food-grade container. Distilled water is crucial here - tap water contains chlorine, fluoride, and variable mineral content that will interfere with your precise mineral ratios. If using a home distillation system, ensure the water has cooled to room temperature before proceeding.
Step 2. In a small glass bowl, combine 4.8g potassium bicarbonate, 2.4g sodium bicarbonate, 2.4g calcium citrate, 1.2g sea salt, and 1.2g magnesium oxide. Use a digital kitchen scale for accuracy - mineral ratios matter for taste and function. Whisk the dry minerals together thoroughly to break up any clumps, especially the magnesium oxide which tends to cluster.
Step 3. Create a mineral concentrate by dissolving the mixed minerals in 500ml (about 2 cups) of the distilled water. Stir continuously for 3-5 minutes until completely dissolved - some cloudiness is normal initially but should clear. The calcium citrate may take longer to dissolve; let it sit for 10 minutes, then stir again.
Step 4. Add the mineral concentrate to the remaining 23.5 liters of distilled water. Stir or shake vigorously for 2-3 minutes to ensure even distribution. The water should taste clean with a very slight mineral note - not salty or bitter. If it tastes too mineral-heavy, you've concentrated the solution too much.
Step 5. Transfer to sterilized glass bottles or BPA-free containers immediately. Fill containers to about 95% capacity to allow for slight expansion. Cap tightly to prevent mineral precipitation and contamination. Label with preparation date for freshness tracking.
Step 6. Storage: Refrigerate for best taste and to prevent any bacterial growth. Use within 2 weeks for optimal freshness. Room temperature storage is acceptable for up to 1 week. Shake gently before each use as some natural mineral settling may occur - this is normal and safe.
Storage
Store in refrigerator for up to 2 weeks, or at room temperature for 1 week. Natural mineral settling may occur - shake gently before drinking. Use glass containers when possible to avoid plastic leaching.
Cost Comparison
Cost per serving (homemade)$0.16
Cost per serving (store-bought)$0.25
Savings36%
Initial mineral investment seems high but creates thousands of servings. After the first batch, ongoing cost is primarily distilled water at about $0.13 per serving. Bulk mineral purchases provide exceptional long-term value.