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What are the ingredients of Dishwashing Tablets?Updated a day ago

TL;DR: Dishwashing Tabs contain 10 ingredients, including two enzymes, protease and amylase. Cleaning comes from oxygen-based bleaching with a bleach activator, washing soda, and water softeners that keep glassware clear in hard water. There are no phosphates, no chlorine bleach, no added fragrance and no dyes. Filter the list below by what each ingredient is there to do.

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Koh Dishwashing Tabs with the ingredient list on the box
Clean plates and glassware after a wash with Koh Dishwashing Tabs

What's in Dishwashing Tabs?

Koh Dishwashing Tabs contain 10 ingredients. Sodium sulphate holds the tablet together. Sodium carbonate softens the water and lifts the pH. Sodium percarbonate is the oxygen-based bleaching agent and tetraacetylethylenediamine, or TAED, lets it work at lower wash temperatures. Sodium citrate, sodium silicate and citric acid handle hard water and limescale. Polycarboxylates keep lifted food suspended so it drains away. Protease breaks down protein and amylase breaks down starch. There are no phosphates, no chlorine bleach, no added fragrance and no dyes. Each tab is wrapped in a water-soluble PVA film that goes in with the tab.

10 ingredients. What each one is for.

Wrapped in a water-soluble PVA film you leave on. Two enzymes.

  • Sodium Sulphate

    Holds the tablet's shape in the box and lets it break down evenly.

  • Sodium Carbonate

    Washing soda. Softens water and raises the pH.

  • Sodium Percarbonate

    Oxygen-based bleaching. Shifts tea, coffee and red wine marks.

  • Sodium Citrate

    Binds the calcium and magnesium behind cloudy glasses.

  • Sodium Silicate

    Slows limescale on the heating element and on your dishes.

  • Polycarboxylates

    Keeps lifted food suspended so it drains away.

  • Protease

    An enzyme that breaks down protein. Egg, dairy, meat juices.

  • Amylase

    An enzyme that breaks down starch. Rice, pasta, potato, thick sauces.

  • Tetraacetylethylenediamine (TAED)

    Lets the oxygen bleaching work at lower temperatures.

  • Citric Acid

    Dissolves mineral scale. The usual reason glasses come out spotted.

Full ingredients, as printed on the box

Sodium Sulphate, Sodium Carbonate, Sodium Percarbonate, Sodium Citrate, Sodium Silicate, Polycarboxylates, Protease, Amylase, Tetraacetylethylenediamine (TAED), Citric Acid.

What are Dishwashing Tabs certified for?

Koh Dishwashing Tabs hold two certifications. They are Good Environmental Choice Australia (GECA) certified against the GECA standard for cleaning products. They are Sensitive Choice approved under the National Asthma Council Australia programme. Each body certifies against its own defined criteria rather than a general claim.

✓ Two certifications, both current

Dishwashing Tabs are Good Environmental Choice Australia (GECA) certified against the GECA standard for cleaning products. They are Sensitive Choice approved under the National Asthma Council Australia programme.

Each body assesses against its own published criteria. Neither is a general claim about the product, and Koh doesn't make antimicrobial claims for the tabs.

GECA certified Sensitive Choice approved 10 ingredients Two enzymes

Where do I find the Safety Data Sheet?

The Safety Data Sheet for Koh Dishwashing Tabs is a technical document written for regulatory and workplace safety compliance. Most households will not need it. If you need it for a workplace register, a childcare or aged care service, or a school, you can download the PDF directly.

✓ Safety Data Sheet

A technical document for regulatory and workplace safety compliance. Most people at home won't need it. Handy if you keep a workplace chemical register.

Get the Safety Data Sheet

Opens as a PDF in a new tab.

Download SDS PDF
Koh Dishwashing Tabs

Dishwashing Tabs

Around 2 months in an average home. 10 ingredients, two enzymes, each tab sealed in water-soluble PVA film. GECA certified, Sensitive Choice approved.

No loose powder to handle
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Dish Starter Kit brings the dishwashing line-up together in one box. A tidy way to start if you have not tried Koh before.

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Last reviewed: September 2026 · Koh Australia

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