AhaBulbStuff Everyone Should Know
AhaBulb: Stuff Everyone Should Know · ahabulb.com/garbage-disposal

Should you run hot or cold water while using a garbage disposal?

Cold water. It keeps grease solid so the blades can chop it up.

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  1. Cold water, as the manual directs ✔
  2. Hot water to melt grease
  3. Either temperature works the same

Why: Run cold water while grinding and for a few seconds afterward. Never pour fat, oil, or grease into the disposal or drain.

Huh, didn't know that: Disposals use impellers and a grind ring rather than sharp spinning blades.

The dad joke
Why did the garbage disposal complain? It had a lot on its plate.
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References

Answer: Cold water, as the manual directs. Run cold water while grinding and for a few seconds afterward. Never pour fat, oil, or grease into the disposal or drain.

  1. InSinkErator: Garbage Disposal Use www.insinkerator.com/en-us/insinkerator-products/garbage-disposals
    Run a steady stream of cold water into the sink before turning on the garbage disposal.
    Checked 2026-10-09.
  2. InSinkErator: Garbage Disposal Use www.insinkerator.com/en-us/insinkerator-products/garbage-disposals
    Never put fats, oils, or grease into a garbage disposal.
    Checked 2026-10-09.

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