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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.


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Koh Dishwashing Liquid effective
Koh Dishwashing Liquid before and after

How do I use Dishwashing Liquid?

Two ways to use Koh Dishwashing Liquid: the sink-soak method and the dish wand method. Sink-soak: fill the sink with comfortably warm water, add 4 pumps of Dishwashing Liquid (around 16ml total), submerge dishes and soak for 5 to 10 minutes, then wash, rinse, and drain. Dish wand: fill the wand reservoir with Dishwashing Liquid and apply directly to dishes, then scrub with a sponge or dishcloth. The soak method works for most loads. The wand method is best for single items or small wash-as-you-go jobs.

✓ Sink-soak method

1

Fill the sink with comfortably warm (not boiling) water.

2

Add 4 pumps of Dishwashing Liquid (around 4 ml per pump).

3

Submerge and soak for 5 to 10 minutes. The formula breaks down stuck-on food during the soak.

4

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.

Single items Wash-as-you-go Water-saving

How should I adjust the dose?

Adjust dose based on load size and food residue. Small basins or 2 to 3 dishes: 2 to 3 pumps (8 to 12ml). Standard kitchen sink for everyday dishes: 4 pumps (16ml). Greasy pots, baking trays, or baked-on food: 5 to 6 pumps (20 to 24ml) or extend the soak from 10 minutes to 15 to 20 minutes. Each pump is around 4ml. Hard-water areas may need slightly more than the standard dose to maintain suds.

✓ Small basin

Few items or hand-wash basin.

2 to 3 pumps 8 to 12 ml

✓ Standard sink

Everyday kitchen load. Plates, glasses, bowls, cutlery.

4 pumps 16 ml

✓ Greasy or baked-on

Pots, baking trays, or stuck-on food. Extend soak time too.

5 to 6 pumps 20 to 24 ml 15 to 20 min soak

What if I'm not getting enough suds or dishes feel greasy?

If suds drop off mid-wash, the wash water is probably saturated with grease. Drain the sink, refill with fresh warm water and detergent, and continue. Hard-water areas may need slightly more than the standard 4-pump dose. If dishes still feel greasy after washing, make sure dishes are fully submerged during the soak, soak heavily greased items longer, and rinse with hot water to fully remove the wash residue. If glassware is coming out streaky, you're using too much soap, reduce the dose and rinse with clean warm water.

⚠ 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.

Drain and refill More for hard water

⚠ 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.

Submerge fully Longer soak Hot rinse

⚠ 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.

Less soap Clean rinse

Any pro tips?

Pre-wipe heavy areas like pan rims, baking trays, and oven racks before the soak so the formula goes to the actual residue, not the surface debris. Don't mix Koh Dishwashing Liquid with bleach, ammonia, or other harsh chemicals, this can reduce cleaning performance and creates safety risks. A 1.5L bag-in-box typically lasts 1 to 2 months for a standard household. Each pump is around 4ml so you can measure precisely if needed.

✓ 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).

No bleach No ammonia Not for dishwashers

Koh Dishwashing Liquid 1.5L bag-in-box

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.

Koh Dish Starter Kit with Dish Pump

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 rewards and ways to save

Koh Perks · earn points on every order

Koh Perks members earn points on every purchase, refer a friend, and redeem for discounts on your next order. Find all the ways to save in one place.

Browse all Dishwashing Liquid articles

Last reviewed: April 2026


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