Gather all the ingredients and ensure your cast iron cookware is clean and dry. A well-prepared surface allows the seasoning oil to adhere effectively.

In a double boiler or a heat-resistant bowl placed over a pot of simmering water, melt the beeswax. Be patient, as beeswax has a higher melting point compared to other oils. Stir occasionally to ensure even melting.

Once the beeswax is fully melted, add the flaxseed oil and coconut oil to the mix. Stir the ingredients together thoroughly, creating a homogeneous mixture. The combination of these oils brings a perfect balance of sealing, polymerizing, and flavor-enhancing properties.

Allow the mixture to cool but not solidify. Once it reaches a pourable consistency, carefully pour it into a container with a tight-sealing lid. Store the DIY cast iron seasoning oil in a cool, dark place when not in use.

When ready to season your cast iron, apply a thin, even layer of the oil mixture to the entire surface of the cookware. Ensure that the oil reaches all nooks and crannies. Bake the cast iron in an oven at a moderate temperature (around 375°F or 190°C) for an hour. This process allows the seasoning oil to bond with the cast iron, creating a durable and non-stick finish.