What Degas Mode Does in an Ultrasonic Cleaner
By John Morris · Published September 11, 2026 · Updated · Research-based guidance
Degassing removes dissolved gas from freshly added cleaning liquid before the load is cleaned. Elma explains that gas left in a new bath can impair cleaning. A dedicated degas mode and an automatic degas sequence prepare that liquid differently, so check which sequence your model uses.
Prepare the liquid before inserting the load
Elma's Easy R manual calls for freshly added liquid to be degassed without the basket or objects. Cleaning agent, when used, is added before that preparation. Follow the instructions for your own model rather than borrowing another cleaner's timer setting.
Fresh refill is the relevant event in that instruction. A routine copied from another machine, or the absence of a visible cloud of bubbles, is not a substitute for the specified preparation.
Standalone mode or automatic sequence?
A standalone mode lets you prepare the bath as a separate operation. Easy R's automatic sequence performs degassing and then starts the selected ultrasonic cleaning mode. That automatic transition is a documented feature of this range; do not infer it from a Degas button on another unit.
Read how your machine ends preparation and when it expects the basket to be inserted. If it has no dedicated degas button, look for a documented preparation method in its manual before assuming that the step is unnecessary.
How long should you degas the bath?
For the Elmasonic Easy R, the manual specifies at least 10 minutes in degas mode; its auto-degas stage lasts approximately 10 minutes before the selected cleaning cycle begins. It also requires degassing without the basket or objects. These are Easy R instructions, not a universal timer setting for every cleaner.
On another model, distinguish fresh-liquid preparation from the time spent cleaning the load. If the listing names a Degas button but gives no operating sequence, obtain the manual before running it. A shortest-cleaning preset is not automatically a degassing program.
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