Septic system? Sorted. These tablets are tough on grime, gentle on your pipes 💪💚

<p>Yes, <a href="https://koh.com/products/dishwashing-tablets" rel="noopener noreferrer" target="_blank">Dishwashing Tablets</a> are septic safe.</p>

Are Dishwashing Tablets septic safe?

What’s in a tab? Only the good stuff! Get the dirt on what makes our Dishwashing Tablets tough on grime, kind to the planet 🌏✨

<p>Dishwasher Tablets combine oxygen bleach, enzymes, and water-softeners for spotless dishes, every time. &#x1F680;&#x1F37D;&#xFE0F;</p><table style="width:100%; border-collapse:collapse;"><thead><tr><th style="text-align:left; padding:8px; font-size:16px; border-bottom:2px solid #ddd;">Ingredient</th><th style="text-align:left; padding:8px; font-size:16px; border-bottom:2px solid #ddd;">What it does</th></tr></thead><tbody><tr><td style="padding:8px; font-size:16px;">Sodium Sulfate</td><td style="padding:8px; font-size:16px;">Filler &amp; stabilizer; maintains tablet shape for even, consistent dissolution and prevents clumping.</td></tr><tr><td style="padding:8px; font-size:16px;">Sodium Citrate</td><td style="padding:8px; font-size:16px;">Water softener &amp; pH regulator; binds hard-water minerals, prevents limescale and keeps dishes spot-free.</td></tr><tr><td style="padding:8px; font-size:16px;">Sodium Carbonate</td><td style="padding:8px; font-size:16px;">Water softener &amp; alkaline booster; raises pH, binds calcium/magnesium and enhances grease removal.</td></tr><tr><td style="padding:8px; font-size:16px;">Sodium Percarbonate</td><td style="padding:8px; font-size:16px;">Oxygen bleach; releases hydrogen peroxide to whiten, remove stains and disinfect.</td></tr><tr><td style="padding:8px; font-size:16px;">Sodium Silicate</td><td style="padding:8px; font-size:16px;">Corrosion inhibitor &amp; water softener; protects dishwasher parts, prevents limescale and stabilizes cleaning agents.</td></tr><tr><td style="padding:8px; font-size:16px;">Citric Acid</td><td style="padding:8px; font-size:16px;">Descaler &amp; pH adjuster; dissolves mineral deposits, boosts stain removal and stops streaking.</td></tr><tr><td style="padding:8px; font-size:16px;">TAED</td><td style="padding:8px; font-size:16px;">Bleach activator; enhances oxygen-bleach performance for tougher stain removal, even in cool washes.</td></tr><tr><td style="padding:8px; font-size:16px;">Polycarboxylates</td><td style="padding:8px; font-size:16px;">Dispersant &amp; water softener; keeps soils suspended, prevents redeposition and mineral build-up.</td></tr><tr><td style="padding:8px; font-size:16px;">Amylase</td><td style="padding:8px; font-size:16px;">Amylase enzyme; breaks down starches from pasta, rice &amp; sauces so they wash away cleanly.</td></tr><tr><td style="padding:8px; font-size:16px;">Protease</td><td style="padding:8px; font-size:16px;">Protease enzyme; cuts through protein-based food stains for a thorough, odor-free clean.</td></tr></tbody></table><p style="margin-top:16px; font-size:16px;"><br><strong>SDS:</strong> <a href="https://cdn.shopify.com/s/files/1/1074/1454/files/Koh_Dishwashing_Tablets_SDS.pdf?v=1738815749" target="_blank" rel="noopener">&#xA0;Download the Dishwashing Tablets Safety Data Sheet (PDF)&#xA0;</a></p>

What are the ingredients of Dishwashing Tablets?

Yep, our tablets are wrapped in a PVA coating to protect your hands… but it’s the biodegradable, water-soluble kind! Safe for homes, kind to the planet 🌏✨

Are Koh tablet products free from plastic?

💧 Keep tablets whole. Place correctly and let the dissolvable film do its job.

<p><strong>Short answer</strong>: Keep each tablet whole. Cutting upsets the detergent balance. Use the dispenser for normal cycles; lay the whole tab on the tub floor for very short programs. This applies to compact to full-size dishwashers.</p><hr><h2 id="why-you-shouldnt-cut-tablets">Why you shouldn&#x2019;t cut tablets</h2><ul><li>The ingredients pre-measured for one wash.</li><li>Crumbing the tab can leave gritty residue and reduce cleaning power.</li><li>The clear dissolvable film keeps undiluted ingredients off your skin, cutting removes that protection.</li></ul><h2 id="best-placement-by-cycle">Best placement by cycle</h2><table><thead><tr><th>Cycle type</th><th>Where to place the whole tab</th></tr></thead><tbody><tr><td>Normal / Auto</td><td>Inside the detergent dispenser.</td></tr><tr><td>Quick / 30-min</td><td>Flat on the tub floor, centred under the lower spray arm.</td></tr><tr><td>Eco (low-temp)</td><td>Start with dispenser; if residue remains, try tub-floor placement.</td></tr></tbody></table><h2 id="why-the-tablets-are-film-wrapped">Why the tablets are film-wrapped</h2><p>The PVA film stops direct contact with concentrated ingredients, which can irritate sensitive skin before they&#x2019;re diluted in the wash. It also keeps each tab intact until water activates it, no need to peel or unwrap.</p><h2 id="quick-tips-for-spotless-results">Quick tips for spotless results</h2><ol><li>Load dishes so spray arms can reach everything, no nesting bowls.</li><li>Handle tablets with <em>dry</em> hands to avoid premature dissolving.</li><li>Rinse aid might still be needed depending on your area&apos;s water hardness.</li><li>Store the pouch sealed, in a cool, dry place.</li></ol><p class="footnote">If dishes still look cloudy, try a hotter program or move the tab placement before considering any dose changes.</p>

Can I cut Dishwashing Tablets?

We're always here via email, care.au@cx.koh.com or fill out the form and we'll be in touch as soon as possible. Our support hours are 9am - 5:00pm AEST Monday to Friday.

How to Koh

Home

Shop

Why Koh

Get Started

Koh AU

Learn all about Dishwashing Tablets: septic-safe, biodegradable PVA film, no-plastic packaging, and enzyme-boosted cleaning power for spotless, eco-friendly shine.

Dishwashing Tablets

Kitchen products 🍽️

Got questions about Dishwashing Tablets? 🍽️✨ From septic-safe sparkle to plastic-free PVA film and powerhouse enzymes, we’ve got you covered!

What are the ingredients of Universal Cleaner?

Why do you sell the Universal Cleaner in bulk?

Does Universal Cleaner contain palm oil?

Is Universal Cleaner septic safe?

What can I use Universal Cleaner for?

How does Universal Cleaner work?

Is Universal Cleaner chemical free

Does the Universal Cleaner kill bacteria and germs?

Do I need to do a spot test with Universal Cleaner?

What can't you use Universal Cleaner on?

How long does Universal Cleaner last?

What surfaces should I not use Universal Cleaner on?

Is there a use by date for Universal Cleaner?

Is Universal Cleaner safe to use on chopping boards?

Is Universal Cleaner fragrance-free?

What Certifications does the Universal Cleaner have?

Is Universal Cleaner allergy friendly?

Is Universal Cleaner pet-friendly?

Is Universal Cleaner asthma friendly?

Is Universal Cleaner being replaced?

Can I use Universal Cleaner on polished marble?

Universal Cleaner

What Happened to Protect Surface Sanitiser?

How long will 1L of Protect Surface last?

How does Protect Surface Sanitiser work?

What surfaces can I use Protect Surface Sanitiser on?

Where is Protect Surface Sanitiser made?

Can I use Protect Surface Sanitiser on my hands?

Where can I use Protect Surface Sanitiser?

Is Protect Surface Sanitiser safe to use on fabric?

Is Protect Surface Sanitiser safe for septic systems?

Can I use Protect Surface Sanitiser in my Spray Mop?

What are the ingredients of Protect Surface Sanitiser?

What type of bacteria does Protect Surface Sanitiser kill?

Is Protect Surface Sanitiser food safe?

Is Protect Surface Sanitiser safe to use around pets?

Is Protect Surface Sanitiser Chemical Free?

Is Protect Surface Sanitiser eco-friendly?

How did you test the effectiveness of Protect Surface Sanitiser?

Can I mix Universal Cleaner and Protect Surface Sanitiser?

Protect Surface Sanitiser: My surface is still wet even after waiting a few minutes.

Does Protect Surface Sanitiser contain alcohol?

Protect Surface Sanitiser

Surface products 🪞

Are Koh Loo Cleaner Tablets safe for septic environments?

Using our new Loo Cleaning Tablets

Do Loo Cleaner Tablets have a fragrance?

Should I remove the wrapper on the Loo Tablet?

What are the ingredients of the Loo Cleaner Tabs?

Loo Cleaner Tabs

What are the ingredients of Bathroom & Shower Cleaner?

How do I use Bathroom & Shower Cleaner?

Are there any surfaces I should avoid cleaning with Bathroom & Shower Cleaner?

Is it allergy / asthma / sensitive skin friendly?

Is it only for use in the bathroom and shower or can I use it elsewhere?

Does Bathroom & Shower Cleaner have a fragrance?

Can I use it to clean EnduroShield or similar coated shower screens?

Is Bathroom & Shower Cleaner safe to use around pets?

Is Bathroom & Shower Cleaner septic safe?

Can I use Bathroom & Shower Cleaner with a Diamond Sponge?

What makes it "eco friendly"?

Can I use Bathroom & Shower Cleaner to clean the bowl of the toilet?

How Much Bathroom & Shower Foam Should I Use?

Universal Cleaner vs. Bathroom & Shower Cleaner: What’s the Difference?

Bathroom & Shower Cleaner

Bathroom products 🚿

Does Koh Dishwashing Liquid kill bacteria?

Where is Dishwashing Liquid made?

Can I use Koh Dishwashing Liquid around grey water / bio-cycle / septic tank environments?

What are the Ingredients of Dishwashing Liquid?

Does Dishwashing Liquid have any fumes or fragrances?

Dishwashing Liquid

Is this the same as Universal Dish Spray?

Does it work on burnt-on grease and oven grime?

What’s the difference between this and the Universal Cleaner?

Can I use it around food?

Is it really non-toxic?

Will it dry out my hands like other degreasers?

Do I need to use the Koh Foaming Spray Bottle?

Can I use it on stainless steel?

Does it contain palm oil?

Do I need to rinse it off?

Is it fragrance free?

Can I use it on non-stick cookware?

What should I use to wipe it off?

Is this a multipurpose cleaner?

Can I use it in the microwave or on appliances?

Why does this product exist when I already have Universal Cleaner?

What’s the actual science-y stuff that makes it work?

How does this fit into the Koh system?

What’s in it? (AKA, the ingredients list)

How exactly do I use it?

Kitchen Grease & Oil Cleaner

What happened to Universal Dish Spray? And what should I use now?

Universal Dish Spray

Can I find Sensitive Laundry Liquid in trial or sample size?

How is the quality and consistency of Koh Sensitive Laundry Liquid ensured?

Where is Sensitive Laundry Liquid manufactured?

What kind of research and development went into creating Sensitive Laundry Liquid?

​How many loads are there in a 1.6L Box of Koh Sensitive Laundry Liquid?

Why/how does Koh Sensitive Laundry Liquid work as a stain pre-treater?

How does Sensitive Laundry Liquid extend the life of fabrics?

How does Koh Sensitive Laundry Liquid make natural fibres feel softer without fabric softener?

How does Sensitive Laundry Liquid help keep clothes whiter and brighter for longer?

Does Sensitive Laundry Liquid contain any fragrances?

Does Sensitive Laundry Liquid deodorise fabrics?

What is Sensitive Laundry Liquid?

What are the ingredients in Sensitive Laundry Liquid?

How can Sensitive Laundry Liquid save me money?

How is Sensitive Laundry Liquid eco-friendly?

Can I use Koh Sensitive Laundry Liquid in my auto-dosing machine?

Where should I store Sensitive Laundry Liquid?

How is Koh Sensitive Laundry Liquid different from other eco-friendly detergents on the market?

Is Koh Sensitive Laundry Liquid suitable for septic / grey water systems?

Can I use Koh Sensitive Laundry as a stain pre-treater?

Can I use Koh Sensitive Laundry for hand washing delicate garments?

Can I use Koh Sensitive Laundry for sportswear and synthetic garments?

Is Koh Sensitive Laundry Liquid safe to use this detergent on silk or wool garments?

Does Koh Sensitive Laundry work in front and top loading machines?

What temperature washes can Koh Sensitive Laundry Liquid be used for? (cold / hot washes)

Can I pre-wash soak with Koh Sensitive Laundry Liquid for heavier soiled loads?

How does the eco-certified formula of Koh Sensitive Laundry Liquid benefit the environment?

Do I still need to use a bleach whitening detergent with Koh Sensitive Laundry Liquid?