Natural Materials: Glaze Chemistry Workshop. Lucia Ocejo. 16 -19 June.
This course is designed for practicing potters, whether you are new to glaze chemistry or looking to deepen your understanding of how raw materials function in ceramic glazes. The course combines technical instruction with hands-on experimentation, guiding students through the process of developing functional, working glazes from both natural materials from the Deia coastline and industrial materials.
About the Artist
Lucia Ocejo is a Mexican potter based in London with over ten years of professional experience. She studied ceramics in the United States and completed an apprenticeship with master potter Steve Sheridan in Australia.
Since 2018, she has taught at Crown Works Pottery in London, alongside leading specialised throwing workshops and ceramic chemistry courses internationally. Her work has been commissioned by leading restaurants, including KOL, and exhibited at venues such as Cambridge Contemporary Gallery. Her recent solo exhibition, When the Earth Turns Blue (2025), was presented at Klei Gallery. Lucia’s practice embraces the geological character of natural materials to create thoughtful objects for daily use.
Day 1:
Students will be introduced to what a glaze is, the materials that make it up, and a brief history of ceramics. Participants will dedicate time to make porcelain line-blend test tiles using moulds and begin sourcing raw materials from the surrounding landscape, including rocks, beach sand, shells and ashes.
Day 2:
Focusing on processing raw materials, students will break down clay, wash ashes, and prepare collected rocks to melt tests. We will revisit glaze material theory and introduce basic glaze formulation followed by the first round of glaze testing by deconstructing and picking a part working glaze.
Day 3:
Students will finish processing raw materials and begin incorporating them into glazes through volumetric line blends. This stage emphasises understanding the fluxing capacity and behaviour of natural materials within glaze systems.
Day 4:
The final day is dedicated to completing lectures in glaze theory, documenting glaze tests and tiles, and organising the results into a shared database that will be accessible to all students.
Please note:
For health and safety reasons, each student must bring their own respirator or dust mask. Participation in lab activities will not be permitted without one, as raw glaze materials are handled in powdered form and can be hazardous if inhaled.
Includes VAT and all materials.
Cancellation Policy
Due to the limited number of places available and the advance costs involved, full payment is required to secure a place on the workshop.
Cancellations made 21 days or more before the workshop start date will receive a full refund.
Cancellations made within 21 days of the workshop start date are non-refundable.
In cases of illness or unforeseen circumstances, a credit toward a future workshop may be offered, subject to availability.
No refunds are given for no-shows or partial attendance. We strongly recommend participants ensure they are able to attend all workshop dates before booking.
This course is designed for practicing potters, whether you are new to glaze chemistry or looking to deepen your understanding of how raw materials function in ceramic glazes. The course combines technical instruction with hands-on experimentation, guiding students through the process of developing functional, working glazes from both natural materials from the Deia coastline and industrial materials.
About the Artist
Lucia Ocejo is a Mexican potter based in London with over ten years of professional experience. She studied ceramics in the United States and completed an apprenticeship with master potter Steve Sheridan in Australia.
Since 2018, she has taught at Crown Works Pottery in London, alongside leading specialised throwing workshops and ceramic chemistry courses internationally. Her work has been commissioned by leading restaurants, including KOL, and exhibited at venues such as Cambridge Contemporary Gallery. Her recent solo exhibition, When the Earth Turns Blue (2025), was presented at Klei Gallery. Lucia’s practice embraces the geological character of natural materials to create thoughtful objects for daily use.
Day 1:
Students will be introduced to what a glaze is, the materials that make it up, and a brief history of ceramics. Participants will dedicate time to make porcelain line-blend test tiles using moulds and begin sourcing raw materials from the surrounding landscape, including rocks, beach sand, shells and ashes.
Day 2:
Focusing on processing raw materials, students will break down clay, wash ashes, and prepare collected rocks to melt tests. We will revisit glaze material theory and introduce basic glaze formulation followed by the first round of glaze testing by deconstructing and picking a part working glaze.
Day 3:
Students will finish processing raw materials and begin incorporating them into glazes through volumetric line blends. This stage emphasises understanding the fluxing capacity and behaviour of natural materials within glaze systems.
Day 4:
The final day is dedicated to completing lectures in glaze theory, documenting glaze tests and tiles, and organising the results into a shared database that will be accessible to all students.
Please note:
For health and safety reasons, each student must bring their own respirator or dust mask. Participation in lab activities will not be permitted without one, as raw glaze materials are handled in powdered form and can be hazardous if inhaled.
Includes VAT and all materials.
Cancellation Policy
Due to the limited number of places available and the advance costs involved, full payment is required to secure a place on the workshop.
Cancellations made 21 days or more before the workshop start date will receive a full refund.
Cancellations made within 21 days of the workshop start date are non-refundable.
In cases of illness or unforeseen circumstances, a credit toward a future workshop may be offered, subject to availability.
No refunds are given for no-shows or partial attendance. We strongly recommend participants ensure they are able to attend all workshop dates before booking.