Homebrew Filters
Water, decided by numbers
Treat water like a recipe, not a mystery.
Test it, read the numbers, filter to target. Every guide here starts from what your water measures — not what a box promises.
TDS 148 ✓GH 4°pH 7.0

☕ CoffeeTDS ~150 · pH 7 · ZERO CHLORINE
🍺 BeerPROFILE BY STYLE · Ca 50–150
💧 DrinkingTASTE + WHAT CARBON REMOVES
Independent — we don't sell filters, we test claims against the numbers.
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5 Micron Water Filter: What It Removes & How to Choose
A 5-micron water filter is often a useful middle ground: fine enough to reduce common suspended sediment, but usually less restrictive than a comparable…
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Water Filters for Chloramine: How to Choose the Right System
If your water contains chloramine, catalytic carbon is the most common starting point among the products and seller guidance reviewed for this article. That…
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DI Resin: How It Works, Types, Uses & Replacement Guide
Deionization resin—usually shortened to DI resin—can produce water with very low ionic content when the media, pretreatment, flow, and monitoring method fit…
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Does Boiling Water Take the Fluoride Out? No—Here’s Why
No. Ordinary boiling does not remove fluoride from tap water or make the water fluoride-free. Most fluoride generally remains in the vessel rather than leaving…
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Glycol Chiller Guide: Sizing, Comparison & Buying Advice
By Erik Sandoval, homebrewer and water-treatment technician Prices and specifications checked August 17, 2026
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How Long Does It Take to Make Beer? A Stage-by-Stage Timeline
For a typical moderate-strength homebrewed ale that is naturally carbonated in bottles, allow about 2–4 weeks from brew day to the first pour. A practical…
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KDF Filters: How They Work, What They Remove, and How to Choose
KDF filters occupy an awkward place in water treatment: the underlying copper-zinc chemistry can be useful, but product labels often imply far more than the…
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Ultraviolet Light Disinfection: How UV-C Works, Uses, Safety, and Limits
Ultraviolet light disinfection is established technology, but “uses UV-C” is not enough to prove that a device will work in a particular room, duct, cabinet,…
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Water Tastes Like Metal? Causes, Safety Checks, and Fixes
If your water tastes like metal, flavor alone cannot tell you whether the cause is iron, copper, manganese, zinc, lead, another substance, or something outside…
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Replacement Filters for Reverse Osmosis System: Fit & Buying Guide
By Erik Sandoval, water-treatment technician · Reviewed August 13, 2026
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Tannins in Water: Causes, Testing and Removal Options
Tea-colored well water may contain tannins, but color alone cannot identify what is in the water or establish that it is safe to drink. Iron, manganese,…
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Does Fridge Water Filter Remove Fluoride? What to Check
Most built-in refrigerator water filters should not be assumed to reduce significant amounts of fluoride. Typical cartridges are designed primarily to reduce…