How to Ensure Immaculate Glass Care in Your Pub or Bar

Need support getting your glasses looking their best, wash after wash?

Taking inspiration from the Cask Marque Glass Care Troubleshooting Guide, we’ve prepared a guide to help pubs and bars maintain the highest standards of glassware.

Recognising the Significance of Glass Care

Too many pubs and bars ignore the importance of glassware when thinking about all the details that go into running a successful operation. This is the vessel that presents your product—be it wine, spirits or beer—to your customer. Spotless glasses reflect the quality of your service, contributing to sales and customer satisfaction.

What Are the Signs of Ineffective Glass Cleaning?

Some are more obvious than others, but there are a number of things to look out for that indicate your glasswasher is not performing as it should.

Common problems linked to poor glass care include dirty glasses, beer with poor head retention, glasses with streaks and spots, and glasses with permanent damage. Below are the actions you can take to reduce the chance of these issues arising.

1. Dirty Glassware

You can identify dirty glasses by wiping the inside of a supposedly clean glass with a damp white napkin. If a brown residue appears, it indicates a build-up of protein. A film of bubbles clinging to the inside of a lager glass is another sign of impurity.

To resolve this:

• Leave your glasswasher door open overnight to dry out and kill bacteria and algae.
• Increase the detergent dosage for slightly dirty glasses.
• Use a chlorinated powder or glass renovating liquid detergent for excessively dirty glasses.
• Ensure your detergent container never runs dry to prevent protein build-up.

2. Flat Beer / Poor Head Retention

Flat beer or poor head retention can be frustrating, but there are measures you can take within your glasswasher maintenance programme to improve beer presentation:

• Use a good quality rinse aid and ensure it’s not overdosing.
• Make sure your rinse water pressure is adequate and consistent.
• In extreme cases, use a “Headkeeper” type glass that supports better head retention.

3. Streaks and Spots on Glassware

If your glasses exhibit a “raindrop effect” or aren’t drying properly, consider these solutions:

• Do not dry glasses with tea towels, which may leave an oily film.
• Ensure your rinse pressure is adequate, potentially by using a booster pump.
• Check that high-quality rinse aid and detergent are used consistently.

4. Cloudy Glasses

Cloudiness is typically caused by minerals (calcium and magnesium) from water drying onto the glass. The solution is to fit suitable water treatment, such as a water softener, demineralisation, or reverse osmosis. This can greatly improve wash outcomes, resulting in truly spotless and shiny glasses.

5. Permanent Damage (Etching)

Etching is permanent damage appearing as a slightly white frosty pattern on the glass. To prevent etching, remove glasses from the glasswasher as soon as possible and avoid cheap, high-caustic detergents.

If a specific brand of glasses frequently exhibits etching, consider changing brands.

What Can You Do to Maintain Performance and Keep Glasses Sparkling?

Let’s look at some of the measures to maintain and improve the performance of your glasswasher.

1. Invest in Good Quality Glasswasher Detergents and Rinse Aid

Investing in high-quality detergents and rinse aids will ensure the best clean for your glasses. Low-quality products can leave residue and cause streaks. Use a rinse aid suitable for your water hardness and a compatible detergent. Never mix chemical brands.

2. Implement Water Treatment

Water treatment plays a vital role in glass care. Installing water softeners or demineralising units can significantly improve water quality, resulting in cleaner, clearer glasses. Units must be maintained regularly according to the manufacturer’s instructions.

3. Regularly Renovate Your Glasses

Renovating glasses involves deep cleaning to remove protein or mineral build-up. This process should be carried out periodically to maintain the integrity of the glassware. Use specific glass renovating products and follow the manufacturer’s instructions carefully.

Read our step-by-step guide on How to Renovate Your Glassware for detailed instructions.

4. Undertake Preventative Maintenance

Preventative maintenance is essential for the efficient running of your commercial glasswasher and overall glass care. Regular checks and routine servicing prolong the lifespan of your machine and ensure it operates at optimal efficiency.

5. Replace Consumable Parts

An often overlooked but essential aspect of maintaining your glasswasher is the timely replacement of consumable parts, such as detergent and rinse aid inner tubes. These components ensure the correct dosing of chemicals into the machine, delivering consistent cleaning and sanitisation.

Maintaining the pristine condition of your glassware is a continuous process that demands regular care and attention. Glass care goes beyond simply cleaning your glasses—it encompasses proper machine maintenance, investment in high-quality chemicals, effective water treatment, and systematic glass renovation.

Want to discuss any of this in more detail? Call our support team on 020 8993 6199 or email office@nelsonwash.co.uk.