Do I need the Foaming Spray Bottle? Could I use an alternative sprayer?Updated 3 days ago
TL;DR: Bathroom & Shower Cleaner, Kitchen Grease & Oil Cleaner and Stain Remover are formulated to be foamed. Foaming Spray Bottle aerates them as they leave the nozzle so the formula clings where you spray it. A standard sprayer will still dispense the liquid, but it runs off vertical surfaces instead of sitting there and working.
Why do foaming formulas need a foaming nozzle?
✓ What the nozzle does
It aerates the formula as it leaves the bottle, turning liquid into a soft foam.
✓ Why that matters
Foam clings to vertical surfaces and stays put, giving the formula contact time to break down soap scum or grease.
✓ What you avoid
Less dripping, less overspray, and less product used to cover the same area.
Can I use a different spray bottle?
✓ It will spray
A standard sprayer will dispense the liquid without any harm to it. Nothing about the formula is dangerous in another bottle.
✓ It will not foam
You lose the cling and the contact time these formulas are designed around, so the clean is usually watery and uneven.
✓ No dilution needed
Koh foaming formulas go into Foaming Spray Bottle neat. There is no measuring or dilution step to get wrong.
Could I use my Atomiser instead?
Produces a fine, aerosol-style mist. Built exclusively for Universal Cleaner.
A weighted ball in the internal tube lets it spray at any angle, even upside down.
Aerates thicker formulas into clinging foam. Built for the three foaming products.
Held upright for best output.
⚠ Do not swap the fills
Filling either bottle with the other's formula gives poor results and can clog the pump. Both are tuned to a specific formula viscosity.
Which products go in the foamer?
Foams up for better contact on tiles, grout and glass, and lets the formula sit on vertical surfaces instead of running off.
✓ Kitchen Grease & Oil Cleaner
Foam clings to vertical surfaces like extractor hoods and splashbacks while it lifts grease.
Pre-treat or spray directly onto fabric. The foam helps the formula sit where you need it before washing.
⚠ Not compatible
Do not fill Foaming Spray Bottle with Universal Cleaner, Dishwashing Liquid or Sensitive Laundry Liquid. These formulas are not designed to foam and can cause a weak spray, clogs, or no output at all.
The foaming mechanism is tuned to specific formula viscosities, which is why only the approved Koh products work properly.
Just the bottle
Pair Foaming Spray Bottle with any compatible Koh foaming formula for even, clinging coverage.
New to Koh?
Bathroom & Shower Starter Kit pairs Bathroom & Shower Cleaner with Foaming Spray Bottle and the bathroom tools to go with them.
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Last reviewed: August 2026 · Koh UK