Melting candles in glass jars is a common practice for repurposing leftover wax. The most recommended and safest way to achieve this, according to the provided reference, is by using the double boiler method.
The Safe Method: Double Boiler
The double boiler method is ideal for melting candle wax in glass jars because it applies indirect heat, reducing the risk of the glass breaking due to direct heat exposure and ensuring the wax melts evenly.
Here’s how to do it:
- Gather Your Supplies: You'll need a pot that is large enough to comfortably fit the candle jar inside, water, and the glass candle jar.
- Prepare the Setup: Place the candle jar in the pot. Add water to the pot around the jar, ensuring the water level is below the rim of the candle jar. You can place a small heat-safe object (like a metal cookie cutter or jar ring) under the jar if you want to lift it slightly off the bottom of the pot, though simply placing the jar directly in the water works well too.
- Apply Heat: Heat the water in the pot over low to medium heat on your stovetop.
- Melt the Wax: As the water heats up, it will gently heat the glass jar, which in turn melts the wax inside. Place the jar in water until it liquifies.
- Monitor the Process: Keep an eye on the water level and the melting wax. It will take some time for the wax to fully liquify.
- Remove the Jar: Once the wax is completely liquid, carefully remove the hot jar from the water using oven mitts or tongs. Be cautious, as the jar will be hot.
What to Do After Melting?
Once the wax is liquid, you can carefully pour it into a suitable container or mold. For example, the reference states that the liquid wax can be poured into a mould to create homemade wax melts. You can also pour it into a new container with a wick to make a new candle or simply discard the hardened wax from the jar after cleaning.
Caution About Microwaves
While microwaving might seem like a quick option, it's generally advised against for melting candle wax in glass jars. The reference specifically warns, "Be careful melting leftover candle wax in a microwave, as the container may not be microwave safe." Glass containers intended for candles are not always designed to withstand microwave temperatures and cycles, which could lead to cracking or breaking.
Summary of Methods
Here's a quick look at the main methods discussed:
| Method | Description | Safety Notes | Recommended? |
|---|---|---|---|
| Double Boiler | Jar placed in a pot of heated water. | Indirect heat; generally safe for glass. | Yes |
| Microwave | Jar placed directly in a microwave. | Container may not be microwave safe; risk of breaking. | No |
By following the double boiler method, you can safely and effectively melt candles in glass jars to repurpose the wax.
