When you don't have access to dishwashing liquid during long-distance travel, there are several alternatives you can use to clean your dishes effectively. Keep in mind that these substitutes might not be as efficient as dishwashing liquid, but they can still get the job done:
Bar Soap: Regular bar soap can be used to wash dishes. Wet the soap and a dishcloth or sponge, and then scrub the dishes as you would with dishwashing liquid.
Shampoo: Shampoo contains surfactants that help break down grease and grime, making it suitable for washing dishes in a pinch.
Body Wash or Shower Gel: Similar to shampoo, body wash or shower gel can be used as a substitute for dishwashing liquid.
Baking Soda: Baking soda is a natural cleaning agent and can help remove grease and stains from dishes. Sprinkle some baking soda on a wet dishcloth or sponge and scrub the dishes.
Salt: Salt can act as an abrasive and help remove stuck-on food particles. Make a paste with water and salt, then scrub the dishes with it.
Vinegar: Vinegar can help cut through grease and remove odors from dishes. Mix equal parts vinegar and water and use it to wash the dishes.
Lemon: Lemon has natural antibacterial properties and can help cut through grease. Squeeze some lemon juice onto a dishcloth or sponge and use it to clean the dishes.
Hand Sanitizer: If the hand sanitizer contains alcohol, it can be used to clean dishes in a pinch. Apply it to a dishcloth or sponge and scrub the dishes.
Remember to rinse the dishes thoroughly with clean water after using any of these alternatives to remove any residue. While these options can help when you don't have dishwashing liquid available, try to get proper dishwashing liquid as soon as possible for more effective cleaning and hygiene.