PSI process for classic shaker bottle ;
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When inspecting a classic shaker bottle, whether for quality control, manufacturing, or personal use, here are the key points to check:
1. Material Quality
Body & Lid Material: Ensure it’s made of food-grade plastic (BPA-free) or stainless steel (if applicable).
Durability: Check for cracks, weak spots, or brittleness.
Odor Test: Low-quality plastics may have a strong chemical smell.
2. Leak-Proof SealLid & Gasket: Ensure the lid has a tight-sealing gasket (usually silicone) to prevent leaks.
Screw Threads: Check for smooth threading that securely fastens the lid.
Shake Test: Fill with water, close tightly, and shake vigorously to check for leaks.
3. Mixing MechanismWhisk Ball/Blender Ball: Should move freely inside (stainless steel is preferred over plastic).
Mesh Grid (if present): Inspect for proper attachment and no clogging.
Agitation Efficiency: Test with protein powder to ensure smooth mixing without clumps.
4. Capacity & Measurements
Markings Accuracy: Check if measurement lines (oz/mL) are clear and correctly printed.
Consistent Fill Level: Ensure the bottle holds the advertised volume.
5. Design & Ergonomics
Grip Comfort: Should have a non-slip texture or ergonomic shape.
Mouth Opening: Wide enough for easy filling and cleaning.
Spout/Dispenser (if any): Should open/close smoothly without dripping.
6. Durability & Wear Resistance
Drop Test (if possible): Should withstand minor falls without cracking.
Scratch Resistance: Graphics/text should not fade easily after washing.
7. Ease of Cleaning
Dishwasher-Safe: If claimed, verify after a wash cycle.
No Hidden Crevices: Check for hard-to-reach spots where residue can accumulate.
Odor Retention: Should not retain smells after washing.
8. Safety & Certifications
BPA-Free Certification: Especially important for plastic bottles.
Non-Toxic Materials: Ensure compliance with FDA/EU food safety standards.
Choking Hazard Check: Small parts (e.g., whisk ball) should be securely enclosed.
9. Branding & Aesthetics
Print Quality: Logos/markings should be smudge-proof.
Color Consistency: No uneven dye or fading.
10. Packaging (if applicable)
Intact Seals: No tampering or damage.
User Manual/Instructions: Clear assembly and usage guidelines.
The label of the inner box and the physical label of the product are clean and clear, and the content is accurate;
The shipping mark and label are consistent with the real thing, the quantity is accurate, and can not be mixed;
The LOGO is clearly visible, and the shape is standardized;
