Rendered Pork Fat
INCI Lard. CAS 61789-99-9; EC 263-100-5, as CosIng gives them. Also: Rendered pig fat, Pork dripping.
Published values
| Saponification value | 192–203 mg KOH/g |
| Used by the calculator | 197.5 mg KOH/g (midpoint) |
| SAP for NaOH | 0.1408 g/g |
| Iodine value | 60–72 g I₂/100 g |
| INS (SAP − IV) | 132 |
| Melting point | — |
| Unsaponifiable matter | ≤ 1.2 % |
A bar made of 100 % Rendered Pork Fat
Conventional qualities summed from the fatty-acid groups; a single-oil bar is a reference point, not a recipe.
How much lye
| Oil | NaOH | KOH |
|---|---|---|
| 500 g | 66.9 g(65.0–68.7) | 93.8 g(91.2–96.4) |
| 1 kg | 133.8 g(130.0–137.5) | 187.6 g(182.4–192.9) |
| 1 lb (454 g) | 60.7 g(59.0–62.4) | 85.1 g(82.7–87.5) |
| 2 lb (907 g) | 121.3 g(118.0–124.7) | 170.2 g(165.5–175.0) |
For this oil alone at 5 % superfat, with pure sodium hydroxide (NaOH) or pure potassium hydroxide (KOH); in brackets, across the published range of its saponification value. KOH is usually sold at 90 %: divide by 0.9. For a whole recipe, open the calculator.
Fatty-acid profile
Saturated : unsaturated 42 : 58
| Fatty acid | Published range, % | Used | |
|---|---|---|---|
| Myristic acid | C14:0 · saturated | 1–2.5 | 1.8 |
| Palmitic acid | C16:0 · saturated | 20–30 | 25.0 |
| Palmitoleic acid | C16:1 | 2–4 | 3.0 |
| Stearic acid | C18:0 · saturated | 8–22 | 15.0 |
| Oleic acid | C18:1 | 35–55 | 45.0 |
| Linoleic acid | C18:2 | 4–12 | 8.0 |
| α-Linolenic acid | C18:3 n-3 | ≤ 1.5 | 1.5 |
| Arachidic acid | C20:0 · saturated | ≤ 1 | 1.0 |
| Gadoleic acid | C20:1 | ≤ 1.5 | 1.5 |
| Behenic acid | C22:0 · saturated | ≤ 0.1 | 0.1 |
| Erucic acid | C22:1 | ≤ 0.5 | 0.5 |
Where these numbers come from
Section 3 GLC fatty-acid ranges (% of total FA) are mandatory; the Appendix table 'Chemical and physical characteristics' (relative density, refractive index, titre, saponification value, iodine value (Wijs), unsaponifiable matter) is ADVISORY. Later editorial amendments (2019+) not checked - FAO site Cloudflare-gated.
Fatty acids from CXS 211 Section 3 GLC ranges, column 'Lard / Rendered pork fat' (% of total FA; mandatory). Also printed there and omitted here (outside key list): C6:0-C12:0 < 0.5 in total, C14:ISO < 0.1, C14:1 < 0.2, C15:0 < 0.2, C15:ISO < 0.1, C15:ANTI ISO < 0.1, C16:ISO < 0.1, C16:2 < 0.1, C17:0 < 1, C17:1 < 1, C17:ISO < 0.1, C17:ANTI ISO < 0.1, C20:2 < 1.0, C20:4 < 1.0. '< x' limits are given as max only. SAP 192-203 mg KOH/g, IV (Wijs) 60-72, unsaponifiable <= 12 g/kg, titre 32-45 C, relative density 0.894-0.906 from the ADVISORY Appendix table (rendered pork fat column). Definition (2.2): fat rendered from tissues and bones of swine, may include bone/skin/head fat (unlike lard). INCI: CosIng also carries the older Latin-form name "Adeps Suillus" for the same material.
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