Electrical conductivity is the measure of how well a substance transmits electric charge, expressed in Siemens per meter (S/m). Electrical conductivity is a ratio of the substance density to electric field strength and is affected by the chemical composition of a substance. In ohmic heating terminology, the conductivity is a measure of the mineral or ionic content. For food substances, the most common ionic ingredient is salt (NaCl). The higher the amount of dissolved salts in a substance, the higher the conductivity. Seawater has a conductivity measurement of ~5 S/m, whereas regular drinking water has a conductivity measurement of ~.0005 to .05 S/m (Janz and Singer, 1975). One method of measuring electrical conductivity is to use a TDS (Total Dissolved Solids) meter. TDS are the total amount of mobile charged ions in a substance (mg/L or ppm), calculated by measuring the number cations (positively charged) and anions (negatively charged) ions in the substance. Electrical conductivity is ~100 times the total number of cations and anions present
Electrical conductivity is the measure of how well a substance transmits electric charge, expressed in Siemens per meter (S/m). Electrical conductivity is a ratio of the substance density to electric field strength and is affected by the chemical composition of a substance. In ohmic heating terminology, the conductivity is a measure of the mineral or ionic content. For food substances, the most common ionic ingredient is salt (NaCl). The higher the amount of dissolved salts in a substance, the higher the conductivity. Seawater has a conductivity measurement of ~5 S/m, whereas regular drinking water has a conductivity measurement of ~.0005 to .05 S/m (Janz and Singer, 1975). One method of measuring electrical conductivity is to use a TDS (Total Dissolved Solids) meter. TDS are the total amount of mobile charged ions in a substance (mg/L or ppm), calculated by measuring the number cations (positively charged) and anions (negatively charged) ions in the substance. Electrical conductivity is ~100 times the total number of cations and anions present
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