How much Dishwashing Liquid should I use?Updated 12 days ago
TL;DR: For a normal sink of warm water, 4 pumps of Dishwashing Liquid (around 16 ml) and a 5 to 10 minute soak is enough for everyday loads. Less for small basins, more for greasy pots or baked-on food. The soak does most of the work, so you do less scrubbing.
How do I use Dishwashing Liquid?
✓ Sink-soak method
Fill the sink with comfortably warm (not boiling) water.
Add 4 pumps of Dishwashing Liquid (around 4 ml per pump).
Submerge and soak for 5 to 10 minutes. The formula breaks down stuck-on food during the soak.
Wash, rinse, drain. Use a sponge or Swedish Dishcloth. Less scrubbing needed after the soak.
✓ Dish wand method
Fill a dish wand with Dishwashing Liquid and apply directly to dishes, then scrub with a sponge or dishcloth. Best for single items, small wash-as-you-go jobs, or water-restricted households where filling a sink isn't practical.
How should I adjust the dose?
✓ Small basin
Few items or hand-wash basin.
✓ Standard sink
Everyday kitchen load. Plates, glasses, bowls, cutlery.
✓ Greasy or baked-on
Pots, baking trays, or stuck-on food. Extend soak time too.
What if I'm not getting enough suds or dishes feel greasy?
⚠ Suds dropping off
If suds disappear mid-wash, the water is saturated with grease. Drain, refill with fresh warm water and detergent. Hard-water areas may also need slightly more than the standard 4 pumps.
⚠ Greasy residue on dishes
Make sure dishes are fully submerged during the soak. Soak heavily greased items 15 to 20 minutes. Rinse with hot water (hotter than the wash water) to fully clear residue.
⚠ Streaks on glassware
Streaks usually mean too much soap. Reduce the dose by a pump or two and rinse with clean warm water. A microfibre or glass cloth helps prevent water spots.
Any pro tips?
✓ Pre-wipe heavy areas
Pan rims, baking trays, oven racks, casserole dishes. A quick wipe before soaking lets the formula go to the actual stuck-on residue, not the surface debris. Each pump is around 4 ml if you prefer measuring by volume.
⚠ Don't mix
Don't mix Dishwashing Liquid with bleach, ammonia, or other harsh chemicals. This reduces cleaning performance and creates safety risks. Don't use in a dishwasher (use Dishwashing Tabs instead).

Dishwashing Liquid · 1.5L
A 1.5L bag-in-box lasts 1 to 2 months for a standard household. 4 pumps per sink, soak 5 to 10 minutes, less scrubbing needed.

Dish Starter Kit · with Dish Pump
Includes Dishwashing Liquid plus the Dish Pump. The pump dispenses around 4 ml per push, so 4 pumps gives you the recommended sink dose without measuring.

Koh Perks · earn points on every order
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Last reviewed: April 2026

