PACKING GEOMETRY & FLUID DYNAMICS
Bottle-Tech vs Chottle-Tech vs Flat Packing: Which Rosin Bag Technique Yields More?
Bottle-Tech folds the bottom corners of a closed nylon bag inward to press a vertical cylinder, while Chottle-Tech uses an open-ended tube of nylon mesh with no top or bottom seam, eliminating seam-trapped oil and increasing 3.5g-14g flower yields by 1.5% to 3.0%.
CONTENDER A VERDICT
Chottle-Tech (Highest Flower Yield & Zero Seam Oil Loss)
CONTENDER B VERDICT
Flat Directional Fold (Mandatory for Bubble Hash & >14g Runs)
Side-by-Side Quantitative Engineering Comparison Table
| Comparison Parameter | Option A Specification | Option B Specification | Lab Winner / Advantage |
|---|---|---|---|
| Bag Geometry Under Pressure | Closed Vertical Cylinder (Tucked Corners) | Open-Ended Vertical Nylon Sleeve (Top/Bottom Open) | Chottle-Tech (Zero Seam Trap) |
| Nylon Seam Oil Retention | Low (Bottom Fold Traps ~0.1g-0.2g) | Minimum Possible (Direct Platen Contact Top/Bottom) | Chottle-Tech |
| Best Batch Weight Window | 3.5g to 10.0g Cured Flower | 5.0g to 14.0g Cured Flower | Tie |
| Safe for Bubble Hash / Kief? | No (Hash Blows Through Vertical Seams) | No (Powders Escape Open Ends) | Use Flat Pillow Fold for Hash |
| Target Bag Footprint PSI | 700 - 950 PSI | 750 - 1,000 PSI | Tie |
Interactive Platen & Bag Footprint PSI Calculator
Interactive Rosin Platen & Bag Footprint PSI Calculator
Calculate both Platen-Level PSI and True Bag-Level PSI. Hydraulic gauge pressure is NOT bag PSI: a 10-ton press on a 2x4 inch bag delivers 2,500 PSI at the mesh, which will cause an instant blowout unless throttled.
Platen Area
15.0 sq in
Platen-Level PSI
533 PSI
Actual Bag-Level PSI
1000 PSI
Ideal Ram Target
3.40 Tons (6800 lbs)
Safety Verdict
OPTIMAL SOLVENTLESS ZONE
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