Collecting, cleaning, and preserving sea urchins from their natural state to a white, skeletal appearance is known as "processing".

Part 1

Step 1. Find a Sea Urchin.

Step 1

Head out to search for sea urchins. Typically, white sea urchins wash ashore or can be found in shallow waters on the beaches of southern countries and the northern Gulf Coast of Mexico. There are many species of these creatures. However, to find live sea urchins, it's best to snorkel in Florida at depths of 1.5 to 2.5 meters. Here, you can spot greenish-gray specimens that resemble sea urchins. These creatures are still alive. After about 30 minutes of underwater exploration, you should be able to collect around 100 sea urchins.

Step 2. Remove the Outer Shell and Spines.

Step 2

Step 3. Rinse the Urchins Thoroughly and Ensure the Bleach is Fully Neutralized.

Step 3

Rinse the sea urchins thoroughly to remove any bleach residues and ensure it is completely neutralized. Leave the sea urchins in the sun to dry. Over time, their color will become even whiter, and the sun's rays will aid in this process.