Used cooking oil should be stored properly before disposing of it or reusing it. Choosing the right container is important to avoid spills, contamination, and other issues. In this article, we will explore the best containers for storing used cooking oil.
Why Proper Storage is Important
There are a few key reasons why proper storage of used cooking oil is important:
- Prevents spills and messes – Used oil can leak and create slippery, dangerous conditions if not stored correctly.
- Avoids contamination – Storing used oil in an open or porous container can allow food particles, dirt, etc to contaminate the oil.
- Minimizes odor – Used oil can develop strong, unpleasant odors over time. A sealed container prevents odors from spreading.
- Allows for reuse – Properly stored oil may be suitable for reuse, such as in making biodiesel fuel.
- Enables safe disposal – Many municipalities require used cooking oil to be disposed of properly. Proper storage is the first step.
Plastic Jugs
Plastic jugs, such as empty milk or juice containers, are a convenient option for storing used cooking oil. Here are some pros and cons of using plastic jugs:
Pros
- Widely available – Plastic jugs for milk, juice, etc can be reused from your own home or obtained for free from many restaurants.
- Inexpensive – There is little to no cost involved in reusing a plastic jug.
- Sealable lids – Plastic jugs have screw-top lids that provide an air-tight seal to minimize odor and prevent spills.
- Durable – Plastic jugs are durable enough for short term used oil storage.
- Easy to handle – The small size and built-in handle make plastic jugs easy to transport.
Cons
- Can degrade over time – Plastic may become brittle and degrade with prolonged exposure to oil.
- Potential leakage – Cracks or imperfect seals can lead to leaks.
- Difficult to clean – The narrow opening and irregular shape of some jugs can make cleaning a challenge.
- Not ideal for long term storage – For longer term storage, a more durable container may be preferable.
Metal Cans
Empty steel coffee cans or other small metal containers can also be effective for storing used cooking oil. Here are some pros and cons of metal cans:
Pros
- Very durable – Metal is not degraded by prolonged exposure to oil.
- Inexpensive – Clean empty coffee cans or soup cans are widely available.
- Leak resistant – Metal cans have durable soldered sides that prevent leaks.
- Reusable – Metal cans can be reused many times for oil storage.
- Easy to clean – Smooth metal construction is easy to wash out between uses.
Cons
- No pour spout – Getting used oil back out of a can be messy without a integrated spout.
- No sealable lid – Coffee can lids do not seal tightly to prevent odors from escaping.
- Heavy – Larger metal cans can be heavy and difficult to carry when full of oil.
- Rust potential – Uncoated cans may rust with prolonged oil exposure.
Glass Jars
Glass jars and bottles are attractive, durable options for oil storage. Here are some upsides and downsides:
Pros
- Reusable – Glass jars are indefinitely reusable.
- Odor resistant – Glass provides an impermeable barrier to contain odors.
- Easy to clean – Glass wipes clean easily after use.
- Pour spout – Some glass jugs have integrated pour spouts for easy dispensing.
- Visually appealing – Glass bottles can provide a vintage/decorative look.
Cons
- Risk of breakage – Glass breaks if dropped and can shard dangerously.
- Heavy – Glass bottles are typically heavier than plastic when filled.
- More expensive – Purchased glass bottles are more costly than reusing plastic jugs.
- No handles – Glass bottles often lack handles that make carrying easier.
Metal Funnels
Using a metal funnel makes it easier to guide used oil into your chosen storage container with less mess. Here are some funnel tips:
- Opt for a funnel with a wide mouth to allow oil to flow quickly.
- A funnel with a long neck is useful for pouring into narrow openings.
- Stainless steel offers durability and easy cleaning.
- Funnels are inexpensive and available at most hardware stores.
- Consider writing “Used Cooking Oil Only” on the funnel to designate its purpose.
Guidelines for Safe Storage
Once you’ve selected an appropriate storage container, follow these guidelines for safe handling and storage of used cooking oil:
- Allow hot oil to cool before transferring to storage container to avoid burns.
- Pour slowly and carefully to minimize splattering and spills.
- Wipe drips and leave space at the top of the container to allow for expansion.
- Label container clearly with “Used Cooking Oil.”
- Store in a safe location away from high temperatures, sparks, open flames, etc.
- Ensure storage area is clean and free of debris that could contaminate oil.
- Consume stored oil within recommended timeframe, typically a few months maximum.
- Check containers periodically for leaks and replace if container is compromised.
How Much Used Oil Can Be Stored?
Local regulations vary on allowable quantities of used cooking oil storage. Some common volume guidelines include:
- 5 gallon or smaller containers for residential storage.
- Up to 55 gallon drums may be permitted for commercial storage.
- Outdoor storage limits are typically 100-500 gallons.
- Always check local ordinances for applicable restrictions.
Disposing of Used Cooking Oil
If not reusing your stored used cooking oil, make sure to dispose of it properly. Here are some disposal tips:
- Never pour oil directly down drains which can clog pipes.
- Check for local disposal programs that accept waste cooking oil.
- Some municipalities allow placing oil curbside with general waste pickup.
- Waste haulers and recycling centers may accept used oil.
- Use authorized hazardous waste sites for disposing large commercial quantities.
Reusing Used Cooking Oil
With proper storage, used cooking oil may be suitable for reuse in certain applications, such as:
- Biofuel production – Used cooking oil can be converted into biodiesel fuel.
- Animal feed additive – Small amounts of used oil can be supplemented into livestock feed.
- Compost accelerator – When composting, cooking oil can help speed decomposition.
- Candle making – Used cooking oil can be made into candle fuel.
- Cleaning agent – Oil diluted with water and baking soda can make an effective cleaner.
Conclusion
With proper selection and handling, used cooking oil can be safely stored for reuse or disposal. Plastic jugs, metal cans, and glass bottles all have their pros and cons. The key is choosing a durable, sealable container suitable for the quantity of oil and length of storage needed. Follow safety guidelines like labeling and checking for leaks. And know your local regulations for maximum quantities and proper disposal methods. With the right storage vessel and practices, used cooking oil can be contained safely out of harm’s way.