Japanese cleaning runs on a small number of cheap, specific tools rather than a cupboard of sprays. Most of what follows costs under fifteen dollars. One of them is genuinely destructive if used on the wrong surface, and it is the one that gets recommended online most often.
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If you buy three things
Tawashi, sarashi cloth and oxygen bleach. Together they cover pans, surfaces and everything that soaks, for around thirty dollars, and none of them needs replacing for a year or more.
Do I need special Japanese cleaning products?
Mostly no. Sesquicarbonate and oxygen bleach are generic chemicals sold everywhere under different names — you do not need to import them. The tools are the part worth importing, because the equivalents abroad are genuinely different.
Is any of this actually better than what I own?
The tawashi and the sarashi are, meaningfully. The melamine sponge and the oxygen bleach are the same products sold locally under other brands. Buy the first two, source the rest wherever is cheapest.
Which tool damages things?
The melamine sponge. It is an abrasive, not a detergent — it cleans by removing a microscopic layer of the surface. On ceramic and glass that is harmless. On a non-stick pan it takes the coating off, on glossy plastic and car paint it leaves a permanent dull patch, and on a phone screen it destroys the oleophobic layer. It is recommended constantly online without this being mentioned.
What is osoji?
The end-of-year deep clean, done through December so the house is clean before New Year. It is the reason Japanese cleaning tools appear in shops in bulk every autumn. If you want a reason to start, that is the traditional one — and December is when the extendable duster earns its place.
How long does a tawashi last?
A year or more with daily use. Rinse and hang it so air gets to both sides. It fails by the fibres going soft and splaying, not by getting dirty — palm fibre does not hold bacteria the way a synthetic sponge does.
Can I put sarashi cloth in the washing machine?
Yes, and it should go in regularly. It is plain cotton. Skip the fabric softener, which coats the fibre and makes it repel water — the exact opposite of what you want from a cloth.
Is oxygen bleach safe for septic systems and colours?
Yes to both. Percarbonate breaks down into soda ash, water and oxygen, with no chlorine. It will still strip some dyes on a long hot soak, so test coloured fabric first, and keep it away from wool, silk and bare aluminium.