5oz Glass Jar with Child-Resistant Black Lid

The 5oz jar bridges the gap between trial sizes and family storage. Holding roughly 150ml of product, enough for regular use without constant replenishment. Borosilicate glass resists chemical degradation and maintains absolute clarity through years of use. The certified child-resistant lid combines compliance with practical security, while the flat bottom design sits stable on shelves and accepts labels without alignment fuss.

What's Included

• One 5oz borosilicate glass jar with flat bottom
• One black child-resistant plastic lid with positive-lock compression seal
• Airtight seal ready for immediate use (no assembly required)

Key Features

• 5oz capacity: 150ml holds meaningful quantities without bulk
• Borosilicate glass: Chemical inert, heat-stable, optically clear
• ASTM D3475 certified: Child-resistant closure meets federal standards
• Black opaque lid: Blocks light, maintains freshness, premium look
• Flat bottom: Sits stable, easy to label and fill
• Wide opening: Accommodates thick products and simple filling
• Positive-lock seal: Compressive gasket maintains airtight integrity
• Professional appearance: Retail-ready without extra finishing

Applications and Use Cases

• Retail product packaging: 5oz is the workhorse size for brands where daily use is expected, it feels substantial on shelves yet encourages regular repurchase cycles
• Cosmetic formulations: Creams, salves, balms, and body care products use this size to showcase product consistency while maintaining perceived luxury
• Specialty food and culinary: Infusions, spice blends, artisanal condiments, and small-batch products benefit from the visual clarity and professional closure
• Small-batch producers: Brands launching their first retail line choose 5oz for proven market acceptance and simple compliance
• Bulk and B2B supply: Distributors stock 5oz jars for resale to downstream packagers and custom-labeling operations

How to Use (Step-by-Step)

1. Inspect the jar for any manufacturing residue. Wash with warm soapy water and dry completely before first use.
2. Fill the jar with your product, leaving approximately 0.25 inches of headspace to allow the lid to seat properly.
3. Place the black lid directly onto the jar opening, ensuring the gasket sits flat against the glass rim.
4. Twist the lid clockwise until it stops naturally (don't force). The gasket will compress slightly, creating an airtight seal.
5. Verify the seal is secure by gently attempting to pull the lid off. Proper sealing will create slight resistance.
6. Store upright in a cool, dark location away from direct sunlight for maximum product freshness.
7. When opening, twist counter-clockwise. The lid will pop slightly as the seal breaks; this is normal.

Specifications

Feature	Detail
Capacity	5 fl oz (approximately 150ml)
Glass Material	Borosilicate Type I
Lid Type	Child-resistant plastic with gasket seal
Lid Color	Black opaque
Bottom Design	Flat
Height	Approximately 2.5 inches
Diameter	Approximately 1.7 inches
Certification	ASTM D3475 / 16 CFR 1700.20
Seal Type	Positive-lock compression gasket
Surface Finish	Smooth glass, accepts labels readily

A 5oz borosilicate glass jar with certified child-resistant black lid, flat base for retail display, and positive-lock compression seal for long-term product freshness.

Compared to Alternatives

Compared to plastic tubs, glass jars offer superior chemical inertness and visual clarity, customers can verify product quality at a glance. Compared to smaller 3oz sizes, the 5oz jar provides meaningful quantity without waste. Compared to larger 8oz or 16oz containers, the 5oz strikes the balance between perceived value and impulse-purchase affordability. The certified CR lid adds compliance overhead that flat-cap alternatives don't carry, but for regulated or compliance-conscious markets, that certification is non-negotiable.

Frequently Asked Questions

Is 5oz really enough for regular use?

For most applications, yes. 150ml typically lasts 2-6 weeks with daily use.

Can I stack these jars for storage?

Yes. The flat bottom and solid black lid create a stable stacking surface. Stack height depends on your shelf capacity.

What's the actual price difference between 5oz and smaller sizes?

Glass cost increases modestly, roughly 20-30% more material than a 3oz jar, not double.

Is this size popular for specific product categories?

Yes. Cosmetic creams, specialty salves, artisanal balms, and daily-use body care products consistently choose 5oz.

Can I apply custom labels to these jars?

Yes. The smooth glass surface accepts white gloss labels reliably. Clean with isopropyl alcohol first for best adhesion.

Does the child-resistant lid expire or degrade?

The lid mechanism is mechanical (not spring-based) and maintains function through years of normal opening and closing. No expiration date applies.

Care and Storage

It's simple: we'd suggest a quick rinse with warm water and mild soap. You're set for years if you don't let residue build up.

Wash with warm soapy water and dry completely before first use to remove any manufacturing residue. Store upright in a cool, dark location away from direct sunlight to maximize product freshness. The airtight seal maintains integrity indefinitely when stored properly. For reuse, a hot water soak followed by an alcohol wipe fully restores the jar to new condition, even if residue or old labels remain.

Shipping and Returns

All glass orders ship from our US warehouse within 1-2 business days with protective packaging to prevent damage in transit. Glass items are carefully wrapped and cushioned. Standard shipping arrives within 5-7 business days. We accept returns on unopened items within 30 days of receipt. Damaged items are replaced at no cost, contact us with photos for quick resolution.

Related Collections and Internal Links

Browse our full glass jars by size collection to compare 5oz against all available dimensions. For bulk and bulk pricing on this size, visit Bulk Pricing options. Explore complete jars and containers for alternative closure styles and larger formats.