Ensure your oat milk is at the desired temperature. If you're making a hot beverage, you can gently heat the oat milk on the stovetop or in the microwave. For a cold beverage, you can use the oat milk directly from the refrigerator.

Pour the oat milk into the milk frother's frothing container. Most standalone milk frothers have specific markings indicating the maximum level for frothing, so pay close attention to that mark.

If the recipe calls for adding any sweeteners or flavorings to your frothed oat milk, do so at this stage.

Close the lid of the milk frother securely to prevent any splattering during the frothing process.

Depending on your milk frother model, select the appropriate frothing mode. Many machines have different settings for hot froth and cold froth. Choose the one that matches your desired beverage.

Press the start button to begin the frothing process. The machine will activate the frothing mechanism, which may include whisking or spinning to introduce air into the milk.

Keep an eye on the milk frother as it operates. It will automatically stop when the frothing process is complete. This typically takes a minute or two.

Once the milk frother has finished frothing, carefully pour the frothed oat milk into your beverage of choice. You can use a spoon to hold back the foam if needed.