Hello Ricardo. I understand your concern about the lingering odor in your apartment. To effectively neutralize the scent in the air, I recommend simmering a solution of one part white vinegar to three parts water on your stove for approximately twenty minutes. The vinegar molecules will bond with the odor-causing oils in the air to neutralize them.
For your wooden cutting board, a baking soda paste is the most effective natural solution. Please follow these steps:
1. Mix baking soda with a small amount of water to form a thick paste.
2. Spread the paste evenly across the surface of the board.
3. Allow it to sit for at least four hours to draw out the fish oils.
This method is safe, natural, and preserves the integrity of the wood for your upcoming barbecue prep.