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  2. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes

  3. Tannin - Wikipedia

    en.wikipedia.org/wiki/Tannin

    Representative chemical structure of a tannic acid, a type of tannin Tannin powder (mixture of compounds) A bottle of tannic acid solution in water. Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids.

  4. Ion-exchange resin - Wikipedia

    en.wikipedia.org/wiki/Ion-exchange_resin

    Ion-exchange resin beads. An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange, that is also known as an ionex. [1] It is an insoluble matrix (or support structure) normally in the form of small (0.25–1.43 mm radius) microbeads, usually white or yellowish, fabricated from an organic polymer substrate.

  5. The 'Dangerous' New Costco Item That Shoppers are ... - AOL

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  6. Costco Just Dropped a Deliciously Cheesy New Item, and ... - AOL

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    'OH MY LORD. How dangerous,' one person said.

  7. Polyphenol - Wikipedia

    en.wikipedia.org/wiki/Polyphenol

    The White–Bate-Smith–Swain–Haslam (WBSSH) definition [6] characterized structural characteristics common to plant phenolics used in tanning (i.e., the tannins). [7] In terms of properties, the WBSSH describes the polyphenols as follows: generally moderately water-soluble compounds; with molecular weight of 500–4000 Da

  8. Costco brings back purchase limits on water, toilet paper ...

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  9. Bakers Are Convinced Costco's Butter Ruined Their Holiday ...

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    By process of elimination, I determined the Costco organic cane sugar was the problem, not the Costco butter," the person wrote. "Organic sugar was releasing too much liquid during baking.