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Boldtbags dry sift screen and box with a small white brush.
White brush with black "Boldtbags" logo and "WWW.BOLDTBAGS.COM" text on a light grey background.
Boldtbags dry sift screen and box with a small white brush.
White brush with black

Boldtbags Frozen Dry Sift Kief Box with Brush

Official Boldtbags Dealer Model: BBFD
$360.00 USD
starting from 0% interest financing from /mo.

Payment Options

Options:Pay in Four, Pay Monthly
Amount:Up to $1,500 (Pay in 4)
Up to $10,000 (Monthly)
Schedule:Bi-weekly to Monthly
Term:6 weeks, 12 or 24 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Schedule:Bi-weekly to Monthly
Term:6 weeks, 6 or 12 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Finance up to:$4,000
Must apply on a desktop device.
Schedule:Flexible
Term:Up to 36 months
Interest:Processing fee + interest
Lease-to-Own?Yes
Amount:$500 to $10,000
Looking to finance equipment under your corporation? Learn more about Business Financing
  • 23 inch by 15 inch working surface for high-volume material processing
  • NSF-compliant polyethylene box and pharmaceutical-grade nylon brush
  • View More Details

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VOLUME PRICING

Commercial & Bulk Purchasing

We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.

Commercial Inquiry

Contact Information
THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are upgrading your extraction workflow because your current setup has porous surfaces that are impossible to keep clean.
  • You are moving to food-grade equipment because you need to maintain compliant documentation for your processing facility.

What We Found

  • The 165-micron screen holds tension remarkably well even after heavy, daily use.
  • The lack of seams and crevices in the food-grade plastic makes this box much faster to clean than wood alternatives.

What Users Say

  • Processors who switched to this unit report passing lab inspections more easily due to the clear documentation included.
  • Users who handle large batches say the consistent screen tension leads to a higher return of high-quality material.

Boldtbags Frozen Dry Sift Kief Box with Brush

Dry sifting kief demands food-safe materials at every contact point — and most off-the-shelf setups fall short the moment you look past the screen. The Boldtbags Frozen Dry Sift Kief Box with Brush is built entirely from 100% food-grade materials, pairing an NSF-compliant polyethylene box with a pharmaceutical-grade nylon brush and a pre-stretched 165-micron screen on a food-grade aluminum frame, so there is no weak link in your extraction chain.

The 165u screen is mounted using Boldtbags' proprietary automatic stretching process, ensuring uniform tension across the full 23" × 15" working surface. That pre-stretched construction eliminates sagging and delivers consistent filtration pass after pass. The frame is powder-coated aluminum assembled with food-grade glue — the same contact-safe standard applied across the entire kit. A Certificate of Compliance ships with every unit for processors who maintain quality documentation.

Whether you're running frozen material or ambient-temperature dry sift, the Boldtbags Frozen Dry Sift Kief Box gives you a self-contained, fully compliant setup that's ready to run from the first session.

Features

🧊
NSF-Compliant Food-Grade Box

The polyethylene box and lid are NSF compliant and 100% food safe — no material compromises at any contact point in the extraction process.

🪥
Pharmaceutical-Grade Nylon Brush

The included brush meets pharmaceutical-grade standards, giving you a safe, effective tool for moving material across the screen without contamination.

🔬
165 Micron Pre-Stretched Screen

The 165u screen is precision-stretched using Boldtbags' proprietary automatic machine for uniform tension and consistent filtration across the full working surface.

🖼️
Food-Grade Aluminum Frame

The screen is mounted on a powder-coated aluminum frame using food-grade glue, maintaining full contact-safety from frame edge to mesh center.

📐
23" × 15" Working Surface

The generous frame dimensions give you ample room to work material efficiently without crowding the screen or sacrificing yield per pass.

🇺🇸
Assembled in the U.S.A.

Every screen is precision manufactured domestically. A Certificate of Compliance is included for processors who require quality assurance documentation.

What's Included

  • NSF-Compliant Dry Sift Box with Lid
  • Pharmaceutical-Grade Nylon Brush
  • 165u Dry Sift Screen (23" × 15")
  • Certificate of Compliance

Specifications

Specification Value
Frame Dimensions 23" × 15"
Screen Micron Size 165u
Frame Material Food-grade powder-coated aluminum
Adhesive Food-grade glue
Box Material Food-grade polyethylene (NSF compliant)
Brush Material Pharmaceutical-grade nylon
Food Safe 100% — all contact materials food grade
Origin Assembled in the U.S.A.
Included Documentation Certificate of Compliance

Frequently Asked Questions

What micron size does this kief box use? +

This kit includes a single 165-micron dry sift screen. The 165u rating is well-suited for kief collection, allowing fine trichome heads to pass through while retaining larger plant material above the screen.

Is this kit safe for food-grade extraction? +

Yes — every contact material in this kit is 100% food grade. The box is NSF-compliant polyethylene, the brush is pharmaceutical-grade nylon, and the screen is mounted with food-grade glue on a food-grade powder-coated aluminum frame.

What are the screen frame dimensions? +

The screen frame measures 23" × 15", providing a large working surface for efficient material processing. The lid-equipped box keeps your workspace contained between passes.

How is the screen stretched and mounted? +

The screen is pre-stretched using Boldtbags' proprietary automatic stretching machine before being mounted to the aluminum frame with food-grade glue. This process ensures uniform tension across the entire mesh surface for consistent filtration.

What is the nylon brush used for? +

The pharmaceutical-grade nylon brush is used to agitate and move material across the screen surface during the dry sifting process. Its food-safe construction ensures no contamination is introduced during contact with your material.

Does this kit include a Certificate of Compliance? +

Yes, a Certificate of Compliance is included with every kit. This documentation confirms the screens meet Boldtbags' food-grade manufacturing standards and is useful for commercial processors maintaining quality assurance records.

Where is this kit manufactured? +

The Boldtbags Frozen Dry Sift Kief Box is assembled in the U.S.A. using precision manufacturing techniques developed specifically for consistent, high-quality dry sift screen production.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

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