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  • Product Info

    Low-Range pH Test Strips for Fermentation – pH 3.8–5.4

    Check how your brew is acidifying with a quick colour comparison. These low-range pH test strips are designed for spot checks in the acidic range. Use them to track changes in kombucha, Jun, water kefir, milk kefir or ginger beer while your brew is within the chart’s range.

    Eight colour references in the acidic range
    The supplied chart has comparison points at 3.8, 4.1, 4.4, 4.6, 4.8, 5.1 and 5.4, plus an upper-end swatch marked 5.4 and above. This gives you several points to compare as your brew acidifies. If your ferment drops below 3.8, use a lower-range test or a calibrated pH meter for a numerical reading.

    You Will Receive

    • 80 low-range pH test strips for single-use testing.
    • Printed colour comparison chart supplied with the strips.
    • Ongoing support by email, chat or phone.

    What You Can Check

    • Acidity over time – compare readings at different stages of the first ferment while the brew is within range.
    • Changes between batches – take readings at the same stage and see how your brews compare.
    • Slow ferments – check whether the pH is changing alongside other signs of fermentation.

    How to Use

    1. Take a small sample of your ferment in a clean spoon or container.
    2. Remove one strip with clean, dry hands and wet the test area with the sample.
    3. Let the colour develop according to the pack directions.
    4. Compare the strip with the printed chart supplied with your strips in good light.
    5. Discard the used strip after testing.

    Each strip gives an approximate pH reading. Use it as one part of monitoring your ferment. A pH reading alone cannot establish that a batch is safe to drink.

    Delivery Details

    We pack your strips carefully and ship them via Australia Post.

    Why Choose The Fermentation Station?

    With over 20 years of fermentation experience, we offer practical brewing supplies and personal support for home fermenters.

    Frequently Asked Questions

    What pH range do these strips cover?

    The numbered comparison points run from pH 3.8 to 5.4. The chart also has an upper-end swatch marked 5.4 and above. That swatch gives an upper-range indication only.

    Can I use these strips for kombucha and Jun?

    Yes. You can use them to track changes in acidity while the brew is within range. If your kombucha or Jun is below pH 3.8, use a lower-range test or a calibrated pH meter for a numerical reading.

    Can I use them for kefir or ginger beer?

    Yes, for approximate readings within the chart’s range. The thickness of milk kefir can make the colour harder to read. If your recipe includes lemon, it can lower the starting pH.

    How precise is the reading?

    The strips give an approximate reading based on the closest printed colour. If you need a precise value or need to check a specific pH threshold, use a calibrated pH meter.

    Can I reuse a test strip?

    Each strip is designed for one test. Use a fresh strip each time you take a reading.