Use a separate reclaim container for each known clay body. Clean, identified scraps give you a batch you can test; mixed or contaminated leftovers may be unsuitable for the work or the firing studio.
Decide what belongs in the batch
Label the container with manufacturer and body name. Exclude air-dry compounds, glaze, plaster fragments, dirt and unidentified clay; wet color is not enough to identify a body.
Collect wet offcuts and failed unfired forms while their identity is clear. Fired pieces will not become plastic clay again by soaking. Make the collection rules explicit in a shared studio.
Work small enough to observe the material
Soft scraps, wetter slip and firm trimmings need different moisture adjustment. Allow time for the batch to equalize; a soft exterior can conceal a hard lump.
Use a wet reclaim process you have learned, and get instruction if material will not break down evenly. Avoid grinding dry scraps at home. Digitalfire emphasizes controlling and testing reclaim composition.
Remove excess water without losing identity
Dewater on a clean surface or system suited to the process. If using plaster, keep damaged or crumbling fragments out of the batch.
Check the clay before a thin layer becomes a hard sheet. Turn and consolidate it as the method requires, then wedge a manageable portion. Timing depends on thickness, room conditions and starting moisture.
Test before committing the whole batch
Throw a small trial and compare it with your familiar fresh body. Note unusual stiffness, weak walls or coarse contamination. Keep the trial identified through any firing the studio approves. Reclaim can vary, so reserve uncertainty for practice work rather than a commissioned matching set.
When batches behave inconsistently, check collection and moisture records before adding ingredients. If the contents are unknown, ask the studio about use or disposal rather than submitting them to a shared kiln.
Questions about this topic
Can I mix two different stoneware scraps?
Do not assume the shared family name makes them compatible. Keep bodies separate unless you have a tested process accepted by the firing provider.
Should I dry every scrap completely first?
Methods differ with the starting material and studio process. Do not create dry dust simply to follow a generic recipe; learn an appropriate wet workflow for your scraps.