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Can I cut Dishwashing Tablets?Updated 7 hours ago

TL;DR: Keep each Dishwashing Tab whole. Cutting it upsets the pre-measured dose and can leave gritty residue. Use the dispenser for normal or auto cycles, and place the whole tab on the tub floor for very short programs. Works the same way in compact to full-size dishwashers.


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Koh Dishwashing Tabs features
Koh Dishwashing Tabs problem and solution

Can I cut Dishwashing Tabs?

No. Each Koh Dishwashing Tab is pre-measured for one full wash. Cutting it in half means half the dose for a full load: gritty residue and reduced cleaning power. The clear dissolvable film also keeps undiluted ingredients off your skin until they're activated by water, cutting the tab removes that protection.

⚠ Keep every tab whole

Each Dishwashing Tab is pre-measured for one full wash. Cutting it in half means half the dose: gritty residue and reduced cleaning power. The clear dissolvable film also keeps undiluted ingredients off your skin, cutting the tab removes that protection.

Don't cut Don't crumble Pre-measured dose

Where should I place the whole tab?

Placement depends on the cycle. Normal and auto cycles: place the whole tab in the detergent dispenser. Quick or 30-minute cycles: lay the whole tab flat on the tub floor, centred under the lower spray arm. Eco (low-temp) cycles: start with the dispenser, and if residue remains, try tub-floor placement next time. This applies to compact and full-size dishwashers alike.

✓ Normal / Auto

Inside the detergent dispenser.

Dispenser

✓ Quick / 30-min

Flat on the tub floor, centred under the lower spray arm.

Tub floor

✓ Eco (low-temp)

Start with the dispenser. If residue remains, try tub-floor placement next time.

Dispenser first

Why are the tabs film-wrapped?

The PVA film stops direct contact with concentrated ingredients, which can irritate sensitive skin before they're diluted in the wash. It also keeps each tab intact until water activates it, so there's no need to peel or unwrap.

✓ Protects skin and stays intact

The dissolvable film stops direct contact with concentrated ingredients, which can irritate sensitive skin before they're diluted in the wash. It also keeps each tab intact until water activates it, no need to peel or unwrap.

Skin protection No unwrapping

Any other tips for spotless results?

Load dishes so spray arms can reach everything, no nesting bowls inside bowls. Handle tabs with dry hands to avoid premature dissolving. Rinse aid might still help depending on your area's water hardness. Store the pouch sealed, in a cool, dry place. If dishes still look cloudy, try a hotter cycle or move the tab placement before considering any dose changes.

✓ Loading and handling

Load dishes so spray arms can reach everything, no nesting bowls inside bowls. Handle tabs with dry hands to avoid premature dissolving. Store the pouch sealed, in a cool, dry place.

No nesting Dry hands Sealed pouch

⚠ Still cloudy?

Rinse aid might still help depending on your area's water hardness. If dishes still look cloudy, try a hotter cycle or move the tab placement before considering any dose changes.

Try rinse aid Hotter cycle

Koh Dishwashing Tabs 50pk

Dishwashing Tabs · 50pk

Pre-measured, film-wrapped tabs. Septic and grey water safe. No unwrapping needed.

Koh Dishwashing Starter Kit

New at Koh?

Dish Starter Kit pairs the tabs with our Dish Pump and Dishwashing Liquid.

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Last reviewed: July 2026 · Koh UK

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