Air fryer glass of water trick: how to clean it

Keeping an air fryer clean is one of the main concerns for people who use this appliance regularly. Over time, grease, food debris and lingering odours can build up, even if the basket is washed frequently. This can affect both the appliance’s appearance and the taste and aroma of the dishes cooked in it.

How does the air fryer glass of water trick work?

The so-called “glass of water trick” for an air fryer relies on creating steam inside the basket. Simply place a heatproof glass or bowl containing water inside it and, if preferred, add lemon, white vinegar or a few drops of mild washing-up liquid.

When the appliance is switched on for a few minutes, the steam reaches the inner surfaces, helping to loosen built-up grease and neutralise odours. Acidic ingredients break down grease molecules and act as mild deodorisers, without harming the coating when used in moderation.

How to use the glass of water method for cleaning

To add this method to your routine, follow a straightforward sequence, allowing the appliance to cool and using containers suitable for heat. The steam then works as a “pre-cleaner”, making the subsequent hand-washing stage easier.

Once you understand how it works, you can repeat it whenever you notice a strong smell or after cooking especially greasy foods. Here is a practical step-by-step guide for everyday use:

1. Wait for the appliance to cool after use to prevent thermal shock.
2. Remove the basket and use kitchen roll to clear away any loose food debris.
3. Place a heatproof glass or bowl inside the basket, filling it halfway with water.
4. Add one of the following options:
   • Lemon slices;
   • 1 to 2 tablespoons of white vinegar;
   • A few drops of mild washing-up liquid.
5. Put the basket back into the air fryer and set the appliance to run for a few minutes at a medium-to-high temperature.
6. Once the cycle has ended, leave the appliance switched off for a few moments so the steam can continue to work, then carefully remove the glass.
7. Wash the basket as usual with a soft sponge and washing-up liquid, rinsing it thoroughly.

How often should you use a glass of water in an air fryer?

The ideal frequency depends on the foods being cooked and how often the appliance is used. If it is used every day, particularly for meat or breaded foods, it is worth using the trick two to three times a week to prevent grease build-up and strong odours.

For less frequent use, or when preparing drier foods such as vegetables and bread, the glass of water can be kept for occasions when a persistent smell develops. A few general measures will also help keep everything in good condition for longer:

• Do not allow residue to collect in the bottom of the basket for several days;
• Check the manual to find out which parts are dishwasher-safe;
• Avoid abrasive sponges or products on the non-stick coating;
• Keep the outside dry, especially the air inlets and outlets.

Does the glass of water trick help extend an air fryer’s lifespan?

A consistent cleaning routine, including strategic use of the glass of water, helps an air fryer continue operating efficiently for longer. Without layers of burnt-on oil, heat is distributed more evenly, the internal components are put under less strain and cooking times are more likely to remain steady.

Keeping odours under control also prevents the habit of overusing seasoning simply to disguise old smells, making the appliance more pleasant to use. By combining steam, gentle washing and attention to the capacity limit and condition of the power cable, the appliance stays tidier, requires less intensive cleaning and is ready for different recipes without unwanted interference.