How to Make Sea Glass

Beginner 15 min 12 steps 25249 views Rating: 4.8/5 Published: 2026-05-25

Purchase a rock tumbler.. Select a handful of raw glass pieces to tumble.. Fill the barrel of the tumbler ⅔ of the way full with glass pieces.

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Steps

1

Purchase a rock tumbler.

Step 1

Purchase a rock tumbler.

2

Select a handful of raw glass pieces to tumble.

Step 2

Select a handful of raw glass pieces to tumble.

3

Fill the barrel of the tumbler ⅔ of the way full with glass pieces.

Step 3

Fill the barrel of the tumbler ⅔ of the way full with glass pieces.

4

Pour in 2 level tablespoons (about 25g) of coarse grit.

Step 4

Pour in 2 level tablespoons (about 25g) of coarse grit.

5

Add water to the top of the rough.

Step 5

Add water to the top of the rough.

6

Add ¼ tablespoon (roughly 3.6g) of baking soda.

Step 6

Add ¼ tablespoon (roughly 3.6g) of baking soda.

7

Seal the tumbler.

Step 7

Seal the tumbler.

8

Set the barrel in the electric tumbler base.

Step 8

Set the barrel in the electric tumbler base.

9

Let the tumbler run for 4-5 days.

Step 9

Let the tumbler run for 4-5 days.

10

Check the progress of the glass.

Step 10

Check the progress of the glass.

11

Rinse off the tumbled glass.

Step 11

Rinse off the tumbled glass.

12

Continue tumbling the glass until it achieves the desired appearance.

Step 12

Continue tumbling the glass until it achieves the desired appearance.

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