Universal Cleaner
One no-rinse surface cleaner for every room in your home. Covers which surfaces it suits and which to avoid, spot testing, floors, food prep, ingredients, shelf life, pets and allergies, and septic compatibility.
What are the ingredients in Universal Cleaner?
Two ingredients: potassium hydroxide and laboratory grade purified water. What each one does for the clean →
How long does Universal Cleaner last?
About 3 months for a 2L in a standard home. Lifespan factors and the 2L vs 4L decision →
Does Universal Cleaner contain palm oil?
No palm oil and no palm derivatives. The two ingredients, and what vegan and cruelty-free cover →
Is Universal Cleaner compatible with septic and greywater systems?
Septic-compatible when used as directed. For rural homes, vans, caravans and off-grid setups →
What can I use Universal Cleaner on?
Universal Cleaner suits most sealed hard surfaces. Glass, tile, grout, floors, and what to avoid →
How does Universal Cleaner work?
Chemistry that breaks oils into water-soluble parts. Saponification, in plain terms →
What chemicals are in Universal Cleaner?
Two: potassium hydroxide and laboratory grade purified water. What each one does, and what is not in there →
Does Universal Cleaner kill bacteria and viruses?
Koh makes no bacteria-kill claims for Universal Cleaner. Effective everyday cleaning removes dirt, grease and organic matter without chemicals designed to kill microbes.
Do I need to spot test Universal Cleaner first?
Spot test any new or unfamiliar surface first. The three-step method and the warning signs →
What can't I use Universal Cleaner on?
Raw soft metals and coated glass are the two to avoid. Which metals, which coatings, and why →
Can I use Universal Cleaner on food prep surfaces?
Suits benchtops, boards and splashbacks once rinsed and air dried. Why the rinse is the condition →
Is Universal Cleaner fragrance-free?
No added fragrance, no masking agents. The mild scent you may notice and where it comes from →
Is Universal Cleaner eco-certified and allergy-friendly?
Universal Cleaner is GECA certified, Allergy UK certified and Sensitive Choice approved →
Is Universal Cleaner a safer choice around pets?
Fragrance-free and Sensitive Choice approved. Dry times, bowls, and why birds and reptiles differ →
Is Universal Cleaner a safer choice for asthma and allergies?
Sensitive Choice approved, Allergy UK certified. Two ingredients, and why patch-testing matters →
Can I use Universal Cleaner on stone, marble, or granite?
Generally yes on sealed stone, spot-test first. Marble, granite, quartz and travertine →
Can I use Universal Cleaner on TV, monitor, or laptop screens?
Not the screen itself, yes the bezels and stands. The pH reason and what to use instead →
How do I clean carpets, rugs, and upholstery with Koh?
Dilute Sensitive Laundry Liquid for large areas, use Universal Cleaner on small spots. Not for wool or silk →
Can I use Universal Cleaner on a leather lounge?
Suits sealed leather when spot-tested. Aniline and unsealed hides need a different approach →
Can I use Universal Cleaner in a robot vacuum or mop?
Depends on the machine, so start with its manual. Dosing, spot-testing and a no-bucket option →
Are there any fabrics I shouldn't use with Universal Cleaner?
Not on wool, silk or other protein fibres. Which fabrics are fine, and what to use instead →
Does Koh offer Universal Cleaner in bulk or larger formats?
2L and 4L bag-in-box, plus Koh Pro for trade. Which size suits, and who qualifies for Pro →
Can I use Universal Cleaner to wash fruit and vegetables?
Suits produce when rinsed thoroughly under running water. Contact time, leafy greens, firm skins →
Can I use Universal Cleaner with a steam cleaner?
Spray on the surface first, then steam. Never in the water tank, and why hoses are the risk →
What floors can you use Universal Cleaner on?
Suits most sealed hard floors. Oiled or waxed timber gets plain water in the mop →