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Washing machine door seal

The folded rubber ring around the door. Its top and its bottom were measured as different environments, and only the bottom is a problem.

Precautions

  • Check the manufacturer's instructions

Start here

What this is, what tends to go wrong with it, and what to do about it.

Made from

Appliance seal rubber

What tends to go wrong

The science behind this: Cleanability is designed in

Part of Washing machine.

In detail

The door seal is a folded rubber ring closing the gap between door and drum, and its geometry is the whole story: the fold that makes it seal also makes a channel holding water after the cycle ends, with a closed door leaving nowhere to evaporate to. The measurement bears this out with unusual clarity. Sampling the top and the bottom of the same seal on the same machines, a study found the top carried on the order of a hundred colony-forming units per square centimetre while the bottom was among the significantly contaminated sites. Same rubber, same machine, same wash — the only variable that differs is whether water drains off it or collects in it. That is why the seal is worth treating as its own problem rather than as part of the appliance. Advice at the level of the machine produces an instruction to clean the seal; the more precise fact is that the top is close to clean and the bottom is where anything you do belongs. It is also why the intervention with a mechanism behind it is drying rather than disinfecting — and the study tested no treatment.

A front-loading washing machine drawn from the front with four parts labelled — dispenser drawer, door seal, drum and drain filter — each with its own instruction, including that the drawer must not go in the dishwasher.
A front-loading washing machine drawn from the front with four parts labelled — dispenser drawer, door seal, drum and drain filter — each with its own instruction, including that the drawer must not go in the dishwasher.

What works

    Detergent is safe on, in specific conditions, Washing machine door seal

    Safe only in specific conditions

    This is only appropriate within specific limits. Outside those limits, no claim is made.

    A washer seal is scrubbed with a toothbrush. An oven gasket is not to be touched. The part decides, not the word 'seal'.

    Only within these limits:

    • Warm water with a MILD detergent, on a soft cloth or sponge
    • A toothbrush for the crevices — the geometry is the problem, not the chemistry
    • Check for coins and socks before scrubbing anything
    • Dry the folds and crevices deliberately, then leave the door open
    • No harsh chemicals and nothing abrasive

    READ THIS BESIDE THE OVEN DOOR GASKET, which the manufacturer says not to clean, rub, damage or move. Two door seals on two appliances with opposite instructions. Neither generalises, and a reader who learns one as a rule will get the other wrong.

    Precautions

    • Check the manufacturer's instructions

    Evidence

    Supported

    Sources

    1. Cleaning a Front Load Washer Door Seal

      Whirlpool Corporation · Manufacturer documentation

      Relied on for: That the seal is cleaned with a soft cloth or sponge, warm water, mild detergent and a toothbrush, scrubbing the crevices, and dried carefully paying attention to folds and crevices, avoiding harsh chemicals or abrasive cleaners. (states this directly)

    Why

    Related

    Aftercare and prevention

    Hacks and claims involving this

    Sources for this page

    Sources

    1. Cultivation-Based Quantification and Identification of Bacteria at Two Hygienic Key Sides of Domestic Washing Machines

      Microorganisms (MDPI), 2021 · Scientific literature

      Relied on for: That the top and bottom parts of the rubber door seal were sampled separately, that the top carried approximately 11.1 x 10^1 CFU per square centimetre, and that bottom door seals were among the sites concluded to be significantly contaminated. (states this directly)

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