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Hi there, I'm Jarvis! I see you're looking at the Commercial Dishwasher Detergent | Tannin Remover | 20 Litre | OSMOS CU593. How can I help you with the technical specs or suitability for your business today?

Jarvis is an AI assistant and may occasionally provide incorrect details. To ensure your equipment fits and functions perfectly, we recommend verifying all critical specifications-including dimensions, power requirements, and compatibility-with our expert sales team prior to purchase.For orders or stock, call 0333 355 0535

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Osmos In Stock

Commercial Dishwasher Detergent | Tannin Remover | 20 Litre | OSMOS CU593

SKU: CU593
£86.72 / exc vat
£104.06/ inc vat
  • Tannin Removal Power
  • Prevents Scaling
  • Highly Concentrated Formula
  • Cuts Through Grease

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Price Match

UK Warehouse

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Features Overview Specifications Case Study Reviews Installation Buying Guide FAQ

Product Overview

Struggling with those stubborn, lingering tea and  coffee stains that just won't budge? Meet the OSMOS CU593, a powerful commercial dishwasher detergent designed specifically for the hardworking British kitchen. It’s not just about getting things clean; it’s about restoring your crockery to its sparkling best, wash after wash. This is the secret weapon for any establishment that takes pride in its presentation.

Perfectly suited for bustling restaurants, cafés, hotels, and  canteens, this professional kitchen dishwasher detergent is a true workhorse. Its highly concentrated formula cuts through tough grease and  is exceptionally effective in both hard and  soft water areas, preventing the dreaded limescale build-up that can damage your machine. It even tackles the pink algae that can form inside dishwashers, ensuring a more hygienic wash environment.

By choosing this specialist commercial dishwasher detergent 20 litre container, you're investing in efficiency and  quality. You'll spend less time pre-scrubbing, save money with its economical usage, and  consistently present your customers with impeccably clean tableware. It's time to let your crockery shine and  make every first impression count.

Key Features and  Benefits

  • Tannin Removal Power: Keeps your cups, mugs, and  teapots looking brand new.
  • Prevents Scaling: Protects your machine from limescale, even in hard water.
  • Highly Concentrated Formula: A little goes a long way, saving you money per wash.
  • Cuts Through Grease: Effortlessly dissolves tough food residue for spotless results.
  • Effective in All Water Types: Delivers consistent cleaning no matter your water supply.
  • Works at Low Temperatures: Saves energy and  lowers your bills without sacrificing quality.
  • Removes Pink Algae: Helps to maintain a cleaner, more hygienic machine interior.
  • Bulk 20L Container: Reduces re-ordering frequency for busy catering businesses.

Technical Specifications

  • Brand: Osmos
  • SKU: CU593
  • Pack Quantity: 1 x 20Ltr
  • Weight: 24.7kg
  • Colour: Clear
  • Type: Commercial Machine Dishwashing Liquid
  • Key Function: Tannin Remover & Descaler
  • Suitability Note: Not for use on silverware or polycarbonate.
  • Returns Policy: This item is non-returnable due to hazardous goods regulations.

Expert Review and  Insights

The OSMOS CU593 is a real problem-solver in the warewashing world. Many detergents claim to be 'all-purpose', but this one genuinely excels in its niche. Its ability to shift baked-on tannin from crockery is second to none, and  the added scale prevention is a massive bonus for anyone operating in a hard water area, protecting a very expensive piece of kit.

Charlotte Rayner – Commercial Cleaning Expert View Profile →

  • Pros: Unbeatable at removing tea stains, a common headache for many cafés.
  • Cons: It’s a specialist fluid; not for use on polycarbonate or silverware.

Case Study: Real Business, Real Results

The Lavender House Hotel in Harrogate was struggling to keep their extensive collection of fine bone china free from tannin stains, which was impacting the guest experience during their popular afternoon tea service. They needed a solution that was tough on stains but safe for their valuable crockery.

"Our teacups were starting to look permanently discoloured, which isn't the standard we aim for. Since switching to the OSMOS CU593, they look as good as new after every single wash. It's lifted years of staining."

Michael Edwards – General Manager

The switch completely eliminated the need for manual pre-scrubbing of over 200 cups and  saucers daily, saving the kitchen porter team an estimated 5 hours of labour per week.

Installation and  Maintenance Guide

Correct Usage

  • Ensure your dishwasher is equipped with an automatic dosing system for liquid detergents.
  • Connect the dosing tube from your machine directly into the OSMOS container.
  • Always consult your dishwasher's manual to set the correct dosage level for optimal results.
  • Wear appropriate PPE, such as gloves and  eye protection, when handling and  changing containers.

Storage & Care

  • Store the container upright in a cool, dry, and  well-ventilated area away from direct sunlight.
  • Keep the cap securely fastened when not in use to prevent spills or evaporation.
  • Regularly check that the dosing tube is clear of any blockages or kinks to ensure consistent delivery.
  • Plan your stock, as this is a non-returnable item due to hazardous goods regulations.

Buying Guide: Choosing the Right Dishwasher Chemical

Not sure which chemical best fits your kitchen's needs? Here are a few pointers to help you decide.

Factor in Water Hardness

Check your local water type. If you're in a hard water area, a detergent with built-in scale prevention like this one is essential to protect your machine.

Know What You're Washing

Identify your most common tableware. This detergent is a champion for ceramics and  stainless steel, but you'll need a different solution for silverware and  polycarbonate plastics.

Concentration vs. Cost

A highly concentrated formula like this 20L dishwasher detergent for catering may seem more expensive upfront, but it is far more economical per wash, saving you money in the long run.

Target Specific Problems

If you serve a lot of tea and  coffee, a detergent with a dedicated tannin remover is a non-negotiable for keeping cups and  mugs looking their best.

Check Machine Compatibility

Ensure the chemical is designed for an automatic dosing system, which is standard on most commercial dishwashers, for safe and  efficient use.

See all Dishwasher Detergent & Rinse Aid

Frequently Asked Questions

Q: Is this detergent safe for all types of dishes?

A: No, it is a specialist cleaner. It's perfect for ceramic, porcelain, and  stainless steel, but should not be used on silverware or polycarbonate items.

Q: What exactly are tannin stains?

A: They're the stubborn, brownish stains left inside cups and  pots by tea and  coffee, which standard detergents often struggle to remove.

Q: Can I use this in my commercial glasswasher?

A: You can, but you must first confirm what your glasses are made of. It is not suitable for polycarbonate glassware, which can be damaged by its formula.

Q: Do I still need to use a rinse aid with this detergent?

A: Yes, we always recommend using a compatible rinse aid. This ensures fast, spot-free drying and  the best possible finish on your tableware.

Q: What does 'highly concentrated' mean for my business?

A: It means you use a smaller amount of liquid for each wash cycle. This makes every 20-litre container last much longer, significantly reducing your cost-per-wash.

Q: Will this product really help my dishwasher last longer?

A: Absolutely. Its anti-scaling agents prevent damaging limescale from building up on vital parts like heating elements, which protects the machine and  can extend its operational life.

Q: Can I use this for washing dishes by hand in the sink?

A: No, this is a powerful commercial machine dishwashing liquid formulated specifically for use with automatic dosing systems in dishwashers. It is not suitable for manual washing.

Q: How effective is it at low wash temperatures?

A: It is formulated to be highly effective even at lower temperatures, allowing you to run eco-cycles that can help reduce your kitchen's energy consumption and  costs.

What Customers Are Saying

"Finally, a detergent that actually gets the tea stains out! This is a must-have for our café, has made a huge difference to our white crockery."

Gemma F. – Café Owner, Brighton

"Very effective and  the big 20L drum lasts ages. Just be careful and  remember not to use it on your polycarb glasses like we nearly did!"

Raj Singh – Restaurant Manager, Birmingham

"We're in a very hard water area and  this has kept our new dishwasher running perfectly. No scale, no stains, brilliant stuff."

Chloe W. – Head Chef, Bath

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The Osmos Standard: A Commitment to Kitchen Hygiene

Choosing the right chemical goes far beyond the immediate shine on a plate; it’s a strategic decision that impacts your entire operation. With the Osmos range, you're not just buying a cleaning product; you're investing in operational intelligence. This industrial dishwasher detergent for restaurants was developed to solve a real-world, persistent problem for caterers: unsightly tannin stains that undermine customer perception. By focusing on targeted solutions, Osmos helps protect your brand's reputation with every cup of tea served. Furthermore, its protective qualities against limescale translate directly into long-term business value, reducing the risk of costly emergency repairs and  extending the life of your dishwasher—one of your kitchen's most vital assets. This is about ensuring consistency, upholding standards, and  supporting a smarter, more efficient kitchen workflow.

Explore more from Osmos

How Limescale Prevention Protects Your Investment

Ever noticed that chalky white build-up inside a kettle? That's limescale, and  it's caused by high mineral content in 'hard water', a common issue across much of the UK. The exact same thing happens inside your commercial dishwasher, coating heating elements and  clogging pipes. This forces the machine to work harder, use more energy, and  eventually leads to expensive breakdowns.

Think of the scale-prevention ingredients in this OSMOS CU593 tannin remover as a bodyguard for your machine's internal parts. As the water comes in, these agents neutralise the minerals that cause limescale, stopping them from ever sticking to surfaces. It’s like having a water softener built right into your detergent. This simple feature keeps your machine running efficiently, saves on energy and  repair bills, and  ensures your investment is protected for the long haul.

Who Should Buy This?

  • Busy Cafés & Tea Rooms

    To keep high-turnover mugs and  teapots pristine and  completely free from brown stains.

  • Hotels & B&Bs

    For ensuring breakfast service crockery is consistently spotless, enhancing the guest experience.

  • High-Volume Restaurants

    For reliable, streak-free results on ceramic and  porcelain plates during the busiest service periods.

  • Workplace & University Canteens

    Where hygiene is paramount and  removing tough stains efficiently from hundreds of cups is a daily task.
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Order your OSMOS CU593 Commercial Dishwasher Detergent today and  bring a lasting, professional sparkle back to your tableware.

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