This “empty plastic bottle in the washing machine” trick is a viral hack that sounds clever but is mostly misunderstood and not generally recommended by appliance experts. It does not have a strong safety or performance basis for most washing machines.
Here’s what it actually claims—and what really happens.
🧴 What the trick is supposed to do
People suggest placing an empty plastic bottle (usually capped) in the drum to:
- “Save water”
- “Improve cleaning”
- “Create extra agitation”
- “Balance the load”
🧠 What actually happens
❌ 1. It does NOT improve cleaning
Washing machines are designed around:
- Water flow
- Drum rotation
- Detergent chemistry
An empty bottle doesn’t meaningfully improve any of these. In some cases, it can actually reduce cleaning efficiency by interfering with movement of clothes.
⚠️ 2. It can damage the machine or clothes
Depending on the wash cycle:
- The bottle can hit the drum walls repeatedly
- It may crack or deform
- It can trap clothing or cause uneven spinning
Over time, this may stress internal components.
💧 3. It does NOT save water or electricity
Modern machines already regulate:
- Water level
- Spin efficiency
- Energy use
A plastic bottle doesn’t influence these systems.
🧺 4. It does NOT “balance the load”
Balance is controlled by the machine’s internal sensors and spin algorithms. A floating object can actually make imbalance worse.
🧪 Where this idea likely came from
This hack likely evolved from unrelated concepts:
- Adding tennis balls to dryers (to fluff items like pillows)
- Using objects to reduce fabric clumping in very specific cases
But those are different appliances and controlled uses, not general washing machine hacks.
🧠 What experts actually recommend instead
✔️ For better cleaning:
- Don’t overload the machine
- Use correct detergent amount
- Pre-treat stains
✔️ For efficiency:
- Run full (but not overloaded) loads
- Use eco mode if available
✔️ For fabric care:
- Separate heavy and light clothes
- Use appropriate wash cycles
🚨 Bottom line
Putting an empty plastic bottle in the washing machine:
👉 Does not provide proven benefits
👉 May interfere with washing performance
👉 Is not recommended by appliance manufacturers
If you want, I can share real washing machine hacks that actually improve cleaning, reduce bills, and protect clothes—those ones are much more useful than viral tricks.