In 1882, Ellen Swallow Richards — the first woman admitted to MIT —
published The Chemistry of Cooking and Cleaning. Her argument:
a household runs on principles, not products.
The industry spent the next 140 years proving her right
by selling you the same principle in 47 different bottles.
HIL Clean finishes her argument.
Ten raw ingredients. The science behind why they work.
An address for where they live.
Richards wasn't teaching cleaning tips. She was teaching why things work — so that a homemaker with washing soda and vinegar could outperform a cabinet full of branded products. The consumer goods industry replaced her principles with recipes, her raw materials with proprietary formulas, and her self-sufficiency with brand dependency.
HIL Clean restores what she built.
These ten items replace the majority of what's under your sink. One bag of citric acid costs less than one bottle of the branded product it replaces — and makes fifty applications instead of one.
Each recipe includes the active chemistry, dwell curve, surface compatibility, safety notes, and cost vs commercial breakdown. No filler. No brand names.
Citric acid is a chelating agent — it binds to iron oxide molecules (rust) and pulls them off the metal surface. The acid doesn't eat the metal, it grabs the rust. Given enough dwell time it does this without any mechanical scrubbing. Same chemistry as commercial rust removers — without the markup.
The fewer items you own, the more powerful your inventory becomes. HIL Clean reduces what you own to a small number of high-competence raw ingredients. The HL System gives each one a permanent address.