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DIY Cleaning Recipe Builder.

Pick what you are making and it works out real quantities from ordinary ingredients — with the cost per use, the method, and an honest comparison of the three approaches.

What are you making?

Water hardness and machine type change the quantities, not just the wording. Everything you tell it below is used.

A main-wash detergent. Water hardness and machine type both change the dose, and both changes are arithmetic rather than opinion.

How many loads to mix at once.

An agitator machine that fills the drum. Roughly 50–60 L in the main wash.

Water hardness

61–120 mg/L. Faint kettle scale, occasional spotting on glassware.

Household

Leaves out anything that suppresses the bacteria a septic tank depends on.

Leaves out every added scent. Nothing is lost from the cleaning.

Leaves out borates and concentrated fragrance oils, which are the two ingestion risks in these recipes.

Leaves out essential oils and borates. Cats cannot clear the phenols and terpenes in essential oils.

Anything else you were going to add?

The dangerous mixtures in real kitchens are usually not the recipe — they are what somebody adds to it. Tick anything you had in mind and it is checked against the recipe before the recipe is shown.

The most commonly added product of all, and one half of most of the fatal pairs.

Added for grease and for streak-free glass.

Added for scale, for smell, and for "extra cleaning power".

Added for scale and for scent.

Added for scale and rust that a weak acid will not shift.

Added for whitening and for surface disinfection.

Added for whitening and stain lift.

Added for faster drying and for disinfection.

Added on top of a cleaner in the belief that it makes it disinfect.

Added to a slow drain that a cleaner has already been poured into.

Added for scent, and sometimes on the belief that it disinfects.

Added for organic soil and odours.

Added as a general-purpose surfactant when nothing else is to hand.

Added as a plant-based surfactant.

Added for abrasion and for deodorising.

Nothing you enter here leaves your browser.

The standard approach, using widely available products.

Natural and Heavy-duty are unavailable for this selection. Select either to read why.

Combination Not Verified. No Mixing Instructions Are Shown.

Laundry detergent, conventional mix.

This tool has no verified compatibility evidence for this selection. Follow the exact product labels and safety data sheets; do not treat missing evidence as permission to mix.

    Conventional, natural and heavy-duty, side by sideAll three are shown at once, including where one is genuinely worse. Nothing here is ranked or recommended — read the rows and decide which trade you want to make.
    Compared onConventionalNaturalHeavy-duty
    EffectivenessEffectiveness: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Effectiveness: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Effectiveness: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.
    CostCost: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Cost: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Cost: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.
    Active timeActive time: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Active time: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Active time: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.
    Safety notesNot verified. Select this option to read why.Not verified. Select this option to read why.Not verified. Select this option to read why.
    Surface riskSurface risk: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Surface risk: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Surface risk: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.
    AvailabilityAvailability: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Availability: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Availability: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.
    Septic safeSeptic safe: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Septic safe: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.Septic safe: Not established. No compatibility evidence is available for this combination, so no figures are shown for it.