Prūf Jar with Built-In Hygrometer – 500ml UV-Proof Glass Storage with Silicone Seal & Boveda Packs

Smart storage designed for premium dried goods

The Prūf Jar combines precise data with thoughtful design to help you protect herbs, coffee, spices, and teas. A built-in hygrometer gives you a quick read on internal humidity and temperature, so you can gauge the climate inside without lifting the lid. The experience is tactile and reassuring: a sturdy glass container, a smooth seal, and a clear view of what matters most—your contents in their best condition.

Conscious design choices work together to preserve aroma, flavor, and freshness. Thick UV-proof purple glass shields contents from light that can degrade quality, while the high-density silicone seal provides a strong airtight barrier and water resistance. This combination helps manage moisture exchange and maintain a stable microclimate inside the jar.

• Visible humidity and temperature readings for quick, informed storage decisions
• Airtight, waterproof silicone seal that minimizes air and moisture exchange
• UV protection helps slow degradation from light exposure

Two Boveda 62% (8g) packs are included to help you tune and sustain the internal environment. Use the packs as a responsive lever to maintain the ideal conditions for your stock, whether you store a small weekly amount or build a longer-term reserve.

• Includes two 62% humidity packs for automatic adjustment
• Supports short-term use or longer-term preservation strategies
• Compact, travel-friendly design suitable for kitchens, shelves, or on-the-go storage

Prūf invites you to approach storage with intention. Practical cues—like the built-in readout and dependable seal—offer a sense of control while you savor the aroma and flavor of your premium goods. If you notice a scent near the lid area, a quick external wipe can help ensure the seal remains effective and the climate stays stable.