Schmaltzberg Fat

Fictional record. This page describes a mining commodity from a fictional setting, not a real material. Information is based on the cited canon, with adaptations and interpretation distinguished where necessary. It is kept separate from the real MineArchive corpus — see Fictional.

The underground fat and tallow deposits of Schmaltzberg in Überwald — Discworld's most commercially important extracted fat, rendered into candles, soap and lamp oil, and explicitly held to be better than ordinary slaughterhouse tallow.

Where it occurs

Found in 'fatbearing strata' beneath and around Bonk. The text names one specific sub-deposit, the 'Schmaltzberg Bend levels', and notes that the wider region also holds 'huge untapped reserves of coal and iron ore' — mentioned but never developed in the story.

How it's obtained

The text distinguishes fat drawn from 'wells and mines', implying two different methods — one presumably closer to oil extraction, the other to solid mining — but describes neither process directly. A grading and pricing system is given: 'one [cent, per barrel] highrendered, three cents for grade two, ten cents per barrel for heavy tallow', measured on what a character calls 'the Ironcrust scale'.

Properties

No technical property (melting point, colour, viscosity) is given. Its distinguishing quality, per the text, is comparative: it makes 'the whitest, brightest candles, the creamiest soap, the hottest, cleanest lamp oil' — markedly better than the ordinary tallow rendered from Ankh-Morpork's own slaughterhouses.

Why it's valuable

Fat is Überwald's principal export and a genuine strategic good for Ankh-Morpork, which cannot supply enough itself. Vimes's diplomatic mission to Bonk is explicitly framed as a trade negotiation to increase its import — the reason the ambassador post exists at all.

Uses

Candles, soap and lamp oil are the three uses the text names directly. Lady Sybil's household, closer to the source, is also served 'fatsup' ('fat soup'), a regional dish explained as being made possible by proximity to the Schmaltzberg deposits.

Canon & adaptations

The deposits' origin is given as regional legend within the story itself, not settled Discworld cosmology: a fifth Disc-bearing elephant is said to have lost its footing on Great A'Tuin's back and fallen, its remains becoming the fat-bearing strata of Überwald. The in-story survey document that discusses this is itself titled, half-mockingly, 'the Land of the Fifth Elephant' — the text treats it as the region's own foundation myth, not as fact the narrative otherwise endorses.

Recorded claims

Each claim is marked with its basis — explicit canon, MineArchive inference, adaptation only, or fandom interpretation — and attached to the source(s) below. Where tellings disagree, both are kept.

• Fat is drawn from 'wells and mines' in the fatbearing strata beneath and around Bonk. (explicit canon) ¹
• In-world legend attributes the deposits to a fifth Disc-bearing elephant that fell from Great A'Tuin's back and crashed into Uberwald. (explicit canon) ¹
• Fat is graded and priced on what the text calls 'the Ironcrust scale': one cent a barrel for grade-one highrendered fat, three cents for grade two, and ten cents a barrel for heavy tallow. (explicit canon) ¹
• Ankh-Morpork's need to import Schmaltzberg fat for candles and soap is the explicit diplomatic reason given for Vimes's embassy to Uberwald. (explicit canon) ¹

Fictional mines producing this

Included only where MineArchive's own research gives a reasonable evidential basis.

• Schmaltzberg
  Schmaltzberg's defining resource, and the reason Ankh-Morpork maintains a diplomatic presence in Uberwald at all.

Sources

1. (primary canon) The Fifth Elephant — Terry Pratchett, 1999 (Discworld #24)

Record created: 25 August 2026 · Last researched: 25 August 2026