If you’ve ever cooked bacon, you’ve likely ended up with leftover bacon grease. But is it safe to reuse this liquid gold, or should you toss it? I decided to dig into the science to determine if you can safely reuse bacon grease.
Why Bacon Grease Was Traditionally Saved
Before refrigeration was commonplace rendering and saving animal fats like bacon grease was an efficient way to get more use out of meat. The grease could then be used for cooking and adding flavor. Plus it provided a shelf-stable cooking fat.
Reusing bacon grease and other rendered fats also prevented waste. For earlier generations trying to stretch food dollars pouring leftover fat down the drain wasn’t an option. And bacon grease gives a boost of meaty, smoky flavor for very little cost.
Potential Benefits of Reusing Bacon Grease
Flavor – The smoky, salty, umami flavors of bacon grease can take dishes like Brussels sprouts, cornbread, and green beans to the next level. Reusing it is an easy flavor hack.
Cost savings – You can get more use out of the bacon you bought. Grease is free cooking fat.
Less waste – Saving the fat keeps it out of waterways and prevents clogged drains
Potential Risks of Reusing Bacon Grease
However, there are also some potential risks associated with reusing bacon grease:
Foodborne illness – Unsafe storage can allow bacteria like salmonella to grow. Storing at room temp is risky.
Oxidation – Exposure to light, air and time can cause rancidity. Grease can develop off-flavors.
Harmful compounds – Cooking at high heat may alter the fat and create carcinogenic compounds.
High in saturated fat – Large amounts of saturated fat from animal sources can raise cholesterol levels.
Safe Storage Guidelines for Reusing Grease
To enjoy bacon grease without getting sick, follow these safety guidelines:
- Allow hot grease to cool slightly before storage.
- Strain out any bacon bits with a sieve, cheesecloth or coffee filter.
- Store in an airtight container like a mason jar.
- Keep in fridge for up to 3 months or freezer for up to 1 year.
- Never store grease on the counter or in an open container.
- Use clean utensils each time to avoid cross-contamination.
Storing in the refrigerator is ideal, as room temperature allows bacteria growth. Freezing prevents rancidity but solidifies the grease.
Healthy Cooking Tips for Reusing Bacon Grease
To get the flavor while limiting health risks, follow these tips:
- Limit to 1-2 tablespoons per recipe. Too much saturated fat can harm heart health.
- Avoid cooking at very high temperatures to reduce carcinogen formation.
- Incorporate plenty of vegetables to balance the fat.
- Opt for bacon grease over butter or oils high in inflammatory omega-6 fats.
- Use just a drizzle to top dishes instead of cooking with it.
Moderating your intake is key to getting benefits without going overboard on saturated animal fats.
How to Dispose of Bacon Grease Properly
When it’s time to toss grease, avoid pouring down drains which can clog pipes. Here are better disposal methods:
- Mix with kitty litter, coffee grounds or sawdust to solidify, then trash.
- Pour into an old can and throw away once full and solidified.
- Check if your community accepts grease for composting or waste oil recycling.
- Contact a local farmer to see if they’ll accept it for biodiesel processing.
Healthier Substitutes for Bacon Grease
For those looking to avoid the risks of bacon grease, try these healthier oil alternatives:
- Extra virgin olive oil
- Avocado oil
- Walnut oil
- Grapeseed oil
- Coconut oil
- Ghee or clarified butter
While not as flavorful, these provide healthier fats that are lower in saturated fat and higher in beneficial monounsaturated or polyunsaturated fats.
The Verdict on Reusing Bacon Grease
Overall, reusing bacon grease is generally safe and provides economical flavor when stored properly and used moderately. However, consider discarding if it has any rancid odors or flavors. For health, limit intake and avoid very high heat cooking.
In moderation, the benefits can outweigh the minimal risks. But oils with more heart healthy fats are healthier for day to day cooking. For an occasional flavor boost, bacon grease is a treasured staple. With proper storage and usage, rendered animal fats like bacon grease can be safely reused.
Frequently Asked Questions About Bacon Grease
Is reused bacon grease still keto friendly?
Yes, reused bacon grease is still keto and low carb friendly, as it contains no carbohydrates. However, consume in moderation as part of a balanced keto diet.
Can bacon grease go bad or expire?
Yes, bacon grease can eventually go bad if left at room temperature or stored for over 3-4 months in the fridge. Signs of spoilage include foul odors, smoking point changes, or visible mold.
Is reheating bacon grease safe after saving it?
Yes, it is safe to reheat cooled bacon grease after storing it properly in the fridge or freezer. Just reheat it gently on the stovetop or in the microwave until melted. Avoid overheating to a smoking point.
Can you reuse bacon grease after cooking eggs in it?
It’s not recommended to save bacon grease after cooking eggs, as leftover egg particles can increase the risk of bacteria growth during storage. Stick to reusing pure bacon grease.
Is bacon grease healthier than vegetable or seed oils?
No, reused animal fats like bacon grease are higher in inflammatory saturated fats than plant-based oils. But grease has some benefits in moderation, while vegetable oils high in omega-6s also need balance.
In the end, being mindful of your overall fat intake and balance of fatty acids is most important for health. An occasional bit of bacon grease is unlikely to cause harm, but shouldn’t be considered as healthy as plant-based oils.