What are the ingredients of Dishwashing Tablets?Updated 7 days ago
TL;DR: Dishwashing Tabs include 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. See what each ingredient does below.
What's in Dishwashing Tabs?
✓ What each ingredient does
Wrapped in a water-soluble PVA film you leave on. Two enzymes.
Full ingredient list, as printed on the box: Sodium Sulphate, Sodium Carbonate, Sodium Percarbonate, Sodium Citrate, Sodium Silicate, Polycarboxylates, Protease, Amylase, Tetraacetylethylenediamine (TAED), Citric Acid.
See what each ingredient does below.
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.
What are Dishwashing Tabs certified for?
✓ 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.
Where do I find the Safety Data Sheet?
✓ 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.
Around 2 months in an average home. Two enzymes, each tab sealed in water-soluble PVA film. GECA certified, Sensitive Choice approved.
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Last reviewed: September 2026 · Koh Australia