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Commercial Glasswasher Cabinet | Glasswash Machine | 2x5Ltr Capacity | OSMOS CU591

SKU: CU591
£33.87 / exc vat
£40.64/ inc vat

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  • Professional Formula
  • Automatic Dosing Design
  • Beer Head Retention
  • Tough on Stains
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Product Overview

Here’s the secret to getting consistently brilliant results from your professional glasswasher. The OSMOS CU591 is a high-performance detergent liquid, specially formulated to tackle the daily grime of a busy British pub, bar or restaurant. It’s the essential fuel for your glasswashing engine, ensuring every single glass comes out sparkling, hygienic, and  ready for your next customer.

This is for any business that takes presentation seriously. If you've invested in a quality commercial glasswasher cabinet and  want to see it perform at its absolute best, this is the professional-grade chemical for you. It’s designed to be used with automatic dosing systems, taking all the guesswork out of the wash cycle and  delivering flawless results from the first glass of the day to the last.

Forget cloudy finishes, stubborn lipstick marks, and  pint-killing residue. The OSMOS CU591 formula is engineered to solve all these problems, protecting your glassware from damage and  your reputation for quality. It’s the simple, effective way to ensure your drinks always look as good as they taste.

Key Features and  Benefits

  • Professional Formula: Keeps your glassware sparkling and  perfectly ready for service.
  • Automatic Dosing Design: Guarantees perfect, consistent results with every single wash cycle.
  • Beer Head Retention: Leaves no residue, so it won't make a freshly poured pint go flat.
  • Tough on Stains: Powers through tricky marks like lipstick, fingerprints, and  smudges.
  • Non-Caustic Alkalis: Gently cleans without causing etching, protecting your delicate glassware.
  • All Water Conditions: Works brilliantly whether your local water supply is hard or soft.
  • Bulk 2x5Ltr Pack: Keeps your stock room full and  your busy bar running without interruption.
  • Safe on All Glasses: Use it confidently on everything from tough pint glasses to fine wine flutes.

Technical Specifications

  • Brand: Osmos
  • SKU: CU591
  • Pack Quantity: 2 x 5Ltr
  • Product Type: Glasswasher Detergent
  • Recommended Use: Automatic Dosing Systems
  • Colour: Clear
  • Total Weight: 11.38kg
  • Key Feature: Non-caustic formula protects glassware
  • Glass Safety: Safe for all glass types, including printed and  nucleated

Expert Review and  Insights

When you've invested in a quality glasswasher, the last thing you want is poor results from the wrong chemical. The OSMOS CU591 is a standout performer. It’s formulated to solve the classic pub and  bar problems – stubborn lipstick marks and  residue that kills a good pint’s head. It's a simple switch that makes a huge difference to presentation and  customer satisfaction.

Charlotte Rayner – Commercial Cleaning View Profile →

  • Top Performance: Excellent at removing lipstick and  grime without affecting beer foam.
  • System Specific: It really needs an automatic dosing system to perform at its best.

Case Study: Real Business, Real Results

The Queen's Arms, a popular gastropub in Cardiff, was struggling with cloudy glasses and  complaints about flat lagers, despite having a reliable undercounter glasswasher for pubs.

"We were constantly having to re-wash glasses, which was a real bottleneck during our busy weekend service. We swapped to the OSMOS CU591 in our machine's dosing system, and  the difference was night and  day. Our glasses have never looked better and  the team is much happier!"

Liam Davies – Pub Landlord

The change immediately eliminated re-washes, saving valuable staff time and  improving glass turnover by an estimated 20% during peak hours.

Installation and  Maintenance Guide

Setting It Up

  • Always check your glasswasher's manual for specific automatic dosing instructions first.
  • Safely connect the feed tube from your machine's dosing pump into the OSMOS CU591 container.
  • Ensure the tube's intake filter reaches the bottom of the container to use all the liquid.
  • Run a quick test or priming cycle to ensure the detergent is being drawn through correctly.

Keeping It Going

  • Store containers upright in a cool, dry place away from direct sunlight.
  • Always wear appropriate PPE, like gloves and  eye protection, when handling and  changing containers.
  • Keep an eye on the liquid level and  have your next box ready to avoid running out mid-service.
  • Regularly clean your glasswasher's filters and  spray arms to maximise the detergent's cleaning power.

Buying Guide: Choosing the Right Glasswasher Chemical

Not sure what fits best with your setup? Here’s a quick guide to help you choose the right chemical for your machine.

Water Hardness

If you're in a hard water area, you need a formula that prevents limescale build-up. This OSMOS liquid is expertly balanced for all UK water conditions.

Beer Head Retention

For pubs and  bars, this is vital. Look for non-caustic formulas like this one that rinse completely clean and  don't leave residue that kills the foam on a pint.

Dosing System

Does your machine have an automatic pump? If so, you need a liquid specifically designed for it, like the OSMOS CU591 glasswasher chemical, for consistency and  cost-efficiency.

Glassware Type

Delicate wine glasses or branded pint glasses can be ruined by harsh chemicals over time. A non-etching formula is a much safer long-term investment for your stock.

Business Volume

Consider how many glasses you wash a day. The OSMOS glasswasher 2x5Ltr pack size offers a fantastic balance of value and  manageable storage for most venues.

Frequently Asked Questions

Q: Is this product a detergent or a rinse aid?

A: This is a high-performance glasswasher detergent, designed to work seamlessly within your machine to provide the main cleaning power.

Q: Can I use this in a machine without an automatic dosing pump?

A: It's specifically formulated for automatic dosing to ensure perfect results and  prevent waste. We don't recommend manual dosing with this product.

Q: Will this remove tough lipstick stains?

A: Yes, its powerful formula is highly effective at dissolving and  removing common soiling from glassware, including waxy lipstick and  fingerprints.

Q: Is it safe for my branded or nucleated pint glasses?

A: Absolutely. It contains no caustic alkalis, so it won't cause etching or damage to logos and  the nucleation points that create bubbles.

Q: Why is 'beer head retention' so important?

A: Invisible detergent residue can cause the carbonation in beer to dissipate rapidly, leading to a 'flat' pint. This formula rinses completely clean, ensuring a perfect pour.

Q: Can I use this for washing plates or cutlery?

A: This product is optimised specifically for glassware. For crockery and  cutlery, we recommend using a dedicated dishwasher detergent like the OSMOS Aluminium-Safe Dishwasher Detergent (FT362).

Q: What does 'low classification' mean on the label?

A: It refers to its chemical safety profile under industry regulations. It means it's considered safer to handle and  store compared to more aggressive, high-caustic chemicals.

Q: How long will one 5Ltr container last?

A: This depends entirely on your machine's dosage settings and  your daily wash volume, but its concentrated formula is designed to be very economical.

What Customers Are Saying

This is the stuff! Gets lipstick off first time, every time. Our glasses are gleaming and  our ale drinkers are happy.

David Chen – The Swan Inn, Bristol

A really good, reliable product. Beer head is much better since we switched. Our restaurant glasswasher machine seems to love it.

Chloe Williams – The Northern Quarter Bistro, Manchester

No more streaks, no more hassle. Just perfectly clean glassware that we can be proud to serve our customers with. Highly recommended.

Fatima Khan – La Trattoria, Birmingham

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The Osmos Promise: More Than Just a Clean Glass

In a fast-paced hospitality business, consistency is currency. Osmos understands that a glasswash machine for bars is only as good as the chemicals running through it. The CU591 formula isn't just about making glasses sparkle for one night; it's about protecting your long-term investment. By preventing the permanent glassware etching caused by cheaper, harsher detergents, it extends the life of your entire collection, saving you significant money on replacements over time. More importantly, it delivers unwavering reliability. It removes the daily gamble of whether glasses will come out clean on the first go, saving your staff precious time on re-washes and  allowing them to focus on great customer service. This commitment to operational excellence—from protecting your pint's foam to safeguarding your glassware—is what makes Osmos a trusted partner in professional kitchens and  bars across the UK.

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How Automatic Dosing Delivers a Perfect Wash Every Time

Ever wondered why some glasses come out sparkling and  others... not so much? It's often down to using the right amount of detergent. This OSMOS liquid is designed for machines with 'automatic dosing'. Think of it like a clever assistant for your glasswasher. Instead of a staff member manually pouring in liquid for each wash (too little and  it won't clean, too much and  it leaves residue), the machine's internal pump automatically pulls the precise amount of OSMOS CU591 needed from the container. This simple mechanism guarantees a consistent, flawless finish on every glass, every single time, and  stops you from wasting a single drop of product. It's efficiency and  quality, bottled.

Who Should Buy This?

  • Traditional Pubs & Bars: Keep your pint glasses pristine and  ensure perfect beer head retention for every single customer.
  • Busy Restaurants: Guarantees sparkling wine glasses and  water tumblers that enhance the entire dining experience.
  • Hotels & Event Venues: Ideal for high-volume glass washing where consistency and  a flawless finish are completely non-negotiable.
  • Cocktail Bars & Nightclubs: Effortlessly removes stubborn lipstick and  fruit pulp, keeping your premium glassware immaculate.
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Ready to Order?

Get your glasses gleaming and  order your OSMOS CU591 Glasswasher Detergent today for fast, simple, and  reliable delivery right to your door.

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