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You can preserve fresh foods by canning, which uses heat to kill naturally occurring microorganisms. The easiest way is by using the hot water bath method. Use this method to can highly acidic foods – including this salsa recipe – without a pressure canner.
Inappropriate organisms, or the microscopic hitchhikers on them, intentionally released in associated water or on equipment can create havoc in a pond, such as harming desired fish populations, introducing diseases or establishing invasive species.