Quick Answer
Safely dispose of leftover curing brine by pouring it down the drain with plenty of water to dilute the salt and other chemicals, or by burying it at least 12 inches deep in a well-ventilated area where it can leach into the ground without contaminating water sources.
Dilution Method
Pouring the curing brine down the drain is a common disposal method, but make sure to do it carefully. Mix 1 gallon of curing brine with 10-15 gallons of warm water to dilute its salt and chemical content. This process can be repeated until the brine is no longer a concern for pipes and water treatment facilities. After each dilution, pour it down the drain with a gentle flow of water to prevent clogging.
Burying Method
For a more environmentally friendly approach, bury the leftover curing brine at least 12 inches deep in a well-ventilated area far from water sources, such as a nearby river or aquifer. Dig a hole about 2-3 feet in diameter and 18-24 inches deep, depending on the amount of brine. Once you’ve poured the brine into the hole, cover it with about 6-8 inches of soil to prevent animals from digging it up and contaminating the surrounding area.
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