First, narrow it down
Stop serving anything with a chemical, cleaner-like, moldy, or otherwise suspicious smell. Compare the smell of the syrup box and plain water without tasting a product you suspect is contaminated.
What you're seeing
| Symptom | Possible cause | What to do next |
|---|---|---|
| One flavor only | Wrong/expired syrup, fitting or line | Inspect that BIB and connection. |
| All flavors incl. plain water | Building water/filter issue | Stop serving and contact service. |
| After chemical cleaning | Possible incomplete flushing | Stop service; arrange an approved verification. |
What to check
Start with one flavor versus everything
If one flavor is affected, verify its box is the correct product, its best-by date, and whether its bag or fitting is damaged. If all drinks are affected, look at water, cleaning history, and cooling.
Check the last box change
A flavor mix-up on a rack can send the wrong product through a labeled button. Confirm the box and hose; if the wrong product was connected, contact service about safely clearing the line.
Inspect nozzles and diffusers
Dried syrup collects around dispenser outlets and can change taste or leave residue in drinks. Follow the cleaning guide for your exact Wunder-Bar or Lancer model.
Review recent cleaning and filter work
Did the issue start immediately after line sanitation, a water-filter change, or plumbing work? Stop pouring if chemical residue is suspected. Never ask an employee or customer to taste-test for remaining cleaning chemicals.
Check temperature and gas supply
Warm or weakly carbonated soda can taste stale or overly sweet. Check the cold-plate ice and CO₂ status using normal indicators.
Compare a fresh, unaffected product
If a second station pours normally, document which station and flavor tastes different. If plain water smells bad, the building supply may need attention.
Why it happens
A syrup, dispenser nozzle, water filter, or shared water line can each affect flavor. The pattern across stations is the quickest way to identify the common point.
Need service?
Do not resume service after a chemical or contamination concern until a qualified person has identified the cause and cleared the equipment.
Contact us (215) 726-8000