Yes—the aluminum foil trick in the freezer can work, but it depends on which version of the trick you mean. There are two popular ones people talk about:
1️⃣ The “foil under ice tray” trick (to freeze ice faster)
Claim: Putting aluminum foil under an ice tray makes ice freeze faster.
Does it work?
✅ Sometimes, slightly.
Why:
Aluminum is a very good heat conductor. When you place foil between the tray and the freezer shelf, it can help transfer heat away from the water a bit faster than plastic or air gaps.
Reality:
- The difference is usually small.
- A metal ice tray already does this better than plastic.
- Freezer airflow and temperature matter much more.
📌 Verdict: Minor effect at best.
2️⃣ The “foil ball in freezer” odor trick
Claim: Aluminum foil balls absorb bad smells in the freezer.
Does it work?
❌ No real scientific evidence.
Why:
Aluminum foil does not absorb odors. Unlike baking soda or activated charcoal, it doesn’t have the chemical or porous properties needed to trap smell molecules.
📌 Verdict: Mostly a myth.
3️⃣ The “foil on shelves to prevent ice buildup” trick
Claim: Lining freezer shelves with foil makes defrosting easier.
Does it work?
✅ Yes—this one actually makes sense.
Why:
- Ice forms on the foil instead of the shelf.
- When defrosting, you can remove the foil with the ice attached.
📌 Verdict: Practical cleaning hack.
✅ Bottom line:
- Freezing faster → small effect at best
- Removing smells → myth
- Easier defrosting → useful trick
If you want, I can also show you 3 freezer tricks that actually work and are backed by science (one of them can make ice freeze noticeably faster). ❄️
