How To Slip Cast A Mug

Slip casting a mug is like a fun science experiment mixed with art. It’s a great way to make consistent, smooth mugs, especially if you’re aiming for a set. Let’s walk through the process and I’ll share some tips and tricks along the way.

Step 1: Choosing the Right Mold

  • Tip: Pick a mug mold that suits your style. Remember, the final product will be a mirror image of the mold’s interior.

Step 2: Preparing the Mold

  • Pointer: Clean your mold thoroughly. Any dust or debris can end up on the surface of your mug.

Step 3: Mixing Your Slip

  • Tip: The slip should be smooth and free of lumps. Think of it like a thick milkshake.

Step 4: Pouring the Slip into the Mold

  • Pointer: Pour slowly to avoid air bubbles. Fill the mold to the top.

Step 5: Waiting for the Right Thickness

  • Tip: The slip will form a layer on the mold’s walls. Wait until this layer reaches the desired thickness – usually about 1/8 inch for a mug.

Step 6: Draining the Excess Slip

  • Pointer: Carefully pour out the excess slip. You can strain and reuse it for future casts.

Step 7: Removing the Mug from the Mold

  • Tip: Once the slip has set, gently open the mold. Be patient; if it’s stuck, give it a little more time to dry.

Step 8: Cleaning Up Edges and Adding a Handle

  • Pointer: Smooth out the seams and edges. Attach a handle, either cast separately or hand-built.

Tips for Successful Slip Casting

Consistency is Key

  • Tip: Keep your slip consistency and drying times consistent for uniform results.

Mold Care

  • Pointer: After use, clean and dry your molds properly. This prolongs their life and ensures good results.


  • Tip: Don’t be afraid to experiment with different slip recipes or adding colorants.


  • Pointer: Slip casting isn’t a rush job. Take your time at each step for the best outcome.

Slip casting mugs can be a bit of a balancing act – getting the slip consistency right, timing the pour and drain, and then the demolding. But once you get the hang of it, it’s a satisfying and efficient way to make beautiful, uniform mugs.

0 0 votes
Article Rating
Notify of
Inline Feedbacks
View all comments