Improved pH Strips: Narrow Range, 9.2-10.6 (free U.S. shipping)
Make sure your culture is at a safe pH! These strips zero in on the critical range...
Since we recommend that you only consume Spirulina grown at 10+ pH, being able to make fine distinctions in this range is critical… These strips will allow you to determine pH in this range far better than the usual wide-range pH strips…the color difference for small pH changes is quite marked with these lovely strips. Have confidence in the safety of your culture! 15 feet of 1/4″ wide test paper.