Ongrok Mini – 5 Piece – Flower Petal Toothless Grinder – 2.2″

Toothless describes the grinding mechanism: instead of traditional sharp pointed or diamond-shaped teeth that pierce and shear herb, the Ongrok Flower Petal Grinder uses a flower-shaped pattern on the milling surfaces that presses and rolls the herb as the lid rotates. This gentle crumbling action separates herb along its natural break points rather than cutting through it, which preserves more of the surface-level trichomes and aromatic compounds compared to a sharp-toothed design. The flower petal pattern mills herb to a consistent fine grind without over-pulverizing it. Users who prioritize flavor preservation and a fluffy, non-compacted output tend to prefer toothless milling designs.

The top section of the Ongrok Mini 5-Piece Grinder is an airtight storage compartment designed to hold whole nugs or ground herb with a seal that reduces moisture loss and odor. A double rubber o-ring sits around the lid of this compartment to create a firm airtight closure when screwed shut. This allows the grinder to serve as a portable stash container as well as a grinding tool — users can load whole herb into the storage jar, carry it throughout the day, and mill directly from it when needed. The storage jar is suited for maintaining freshness during transport and for storing other moisture-sensitive items like gummies or tea between uses.

The quarter-turn locking system on the Ongrok 5-Piece Grinder uses the same mechanism found on Ongrok’s EZ Grinder models. Rather than threading the main compartment open with multiple full rotations, the chamber requires only a 90-degree quarter turn to open and close. This prevents the common problem of grinding chambers getting stuck or seized with resin buildup on traditional threading, and makes accessing the ground herb significantly faster. A quarter turn in one direction opens the compartment; a quarter turn back closes and locks it. The neodymium magnet holds the central grinding assembly together while the quarter-turn mechanism manages the storage access.

Yes. The 5-piece adds a dedicated airtight storage jar at the top of the grinder body, which the 4-piece EZ Grinder does not have. The 5-piece also uses the flower petal toothless milling design rather than the triangular teeth of the 4-piece EZ. The 4-piece EZ has a standard 4-piece construction with 33 triangular teeth, removable screen, and quarter-turn lock. The 5-piece is a 2.2-inch model only, while the 4-piece EZ is available in 55mm and 63mm sizes. Users who want the storage jar and toothless milling should choose the 5-piece. Users who want sharper, faster tooth-based grinding without a storage jar should choose the 4-piece EZ.

Open the airtight storage jar at the top by unscrewing the lid. Place whole herb into the storage chamber. Access the milling section by using the quarter-turn locking mechanism to open the central grinding chamber. Load herb from the storage jar into the milling chamber, or grind directly with herb loaded at the storage level. Place the milling lid on top and press gently downward while rotating back and forth. The flower petal milling surfaces separate the herb without the need for the sharp back-and-forth shearing of a toothed grinder. When the sound changes and rotation becomes free, milling is complete. Open the catch section using the quick-release mechanism to access ground herb.

Remove the o-ring seals from the storage jar lid and set them aside to avoid soaking in alcohol. Detach the removable screen by lifting the handle and rotating counter-clockwise. Disassemble all five pieces. Soak the aluminum components in isopropyl alcohol for 20 to 30 minutes, brush away dissolved residue, rinse with warm water, and dry completely before reassembling. Clean the o-rings separately with a damp cloth and dry them thoroughly before reinstalling to maintain their sealing effectiveness. Reinstall the removable screen by rotating it clockwise until it seats and locks. The neodymium magnet area can be wiped with a dry cloth to remove herb particles.