Why Pouring Canned Tuna Oil Down the Sink Is a Bad Idea: An Environmental and Household Perspective (Page 2 ) | March 22, 2025

1. Why you shouldn’t pour tuna oil down the sink?
At first glance, tuna oil seems like just another liquid, leading some people to believe that it can be safely disposed of down the sink. However, there are hidden dangers, both to your plumbing system and to the environment.

🚫 Clogs and Plumbing Problems
✔️ Oil solidifies over time – Like other fats, tuna oil thickens as it cools, which can cause clogs in drains, especially when mixed with other food residue.

✔️ Fats form “fatbergs” – In municipal sewer systems, oils and greases contribute to the formation of “fatbergs”, solid masses of grease and waste that can damage infrastructure and require costly interventions.

✔️ Slow Drainage and Bad Odors – A build-up of oil in the pipes often results in slower water flow and unpleasant odors in the kitchen.

2. The Environmental Impact of Pouring Tuna Oil Down the Sink
Beyond the household issues, pouring tuna oil down the sink also harms the environment in several ways.

 

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