How should a Morbi tile maker count the clay, frit and glaze it buys?
Clay, feldspar, frit, glaze and packaging are purchased goods, Scope 3 category 1. Take tonnes from the invoices and use supplier or named database factors. Kiln gas and power stay in Scope 1 and 2, and transport to the plant is category 4.
Lines to keep
Clay and feldspar by tonne.
Frit and glaze by kg, each with its supplier.
Cartons and pallets by unit or kg.
Why frit matters
Frit is itself melted at high temperature before you buy it, so its factor per kg matters. Ask the frit maker for their figure before using a generic one.
What Senseible does here
Senseible reads the energy invoices behind the making stage into a fingerprinted Scope 1 and 2 record, and keeps material invoices on the Scope 3 trail. Material factors come from your supplier or a named database and are labelled with their source, so the product figure can be traced line by line.
Sources: GHG Protocol Corporate Value Chain (Scope 3) Standard, ISO 14067 Carbon footprint of products
Last reviewed 2026-10-21.