Pork Products

Pork, fresh, leg (ham), shank half, separable lean only, cooked, roasted

Parameters

Sodium: 84 mg
Salt, derived: 0.21 %
Water: 65.3 g
Brine concentration: 0.33 %
Moisture-protein ratio: 2.28 : 1

USDA FoodData Central, SR Legacy, FDC ID 168229. All values are per 100 g of the food as described. Retrieved 2026-09-04. Source record

How the derived figures were obtained

salt %      = sodium mg / 1000 x 2.5420 / 100 x 100
            = 84 / 1000 x 2.5420 = 0.214 g per 100 g
brine %     = 100 x salt / (salt + water)     [FSIS-GD-2016-0002]
            = 100 x 0.214 / (0.214 + 65.3) = 0.326 %
MPR         = water % / protein % = 65.3 / 28.7 = 2.275 : 1

Full composition, per 100 g

Nutrient	Value	Unit
Energy	175.0	kcal
Water	65.3	g
Calcium	14.0	mg
Potassium	376.0	mg
Total fat	5.83	g
Cholesterol	93.0	mg
Saturated fat	1.84	g
Protein	28.7	g
Iron	0.92	mg
Sodium	84.0	mg
Carbohydrate	0.00	g

What these figures do and do not say

The brine concentration above is computed from this food's own sodium and water using the FSIS formula, 100 x salt / (salt + water). It is a description of a finished commercial product, not a target. FSIS cites 10 percent brine after equalisation as the figure that prevents Staphylococcus aureus enterotoxin production during warm drying, and 9 CFR 319.106(b)(4) requires not less than 10 percent for a dry cured ham made without nitrate or nitrite.

Water activity cannot be computed from composition. It is a measurement, and it is the measurement that decides shelf stability. The published limits are 0.85 in air and 0.91 vacuum packed, both from FSIS-GD-2014-0010.

Nearby entries

Source: USDA FoodData Central, SR Legacy, published 2019-04-01. Retrieved 2026-09-04.