18oz Child-Resistant Glass Jars (24 Pack) with Airtight Black Lids

Buying jars one-by-one for a business gets expensive fast. The 18oz Child-Resistant Glass Jars (24 Pack) solves that by delivering consistent, uniform containers in bulk. Each jar includes a ASTM D3475-certified push-and-turn lid that keeps contents secure from children while remaining functional for adults. Thick borosilicate glass won't chip easily, and the airtight gasket seal holds contents fresh longer than standard jars.

What's Included

• 24 jars, 18oz each
• 24 black child-resistant lids with airtight liners
• Ready to use - no assembly needed

Key Features

• ASTM D3475 certification: Push-and-turn lids are tested and certified child-resistant, meeting federal safety requirements.
• 5mm borosilicate glass: Resists thermal shock, won't leach chemicals into contents, durable for repeated use.
• Airtight gasket seal: Keeps contents fresh and odor-contained for weeks at a time.
• Bulk pricing: 24-pack cost per jar beats retail single-jar prices by 40-50%.
• Matte black finish: Professional appearance suitable for retail display or private label packaging.
• Compact footprint: 18oz size is large enough for real quantities without dominating shelf space.

Applications and Use Cases

Small-batch food makers use these for repackaging bulk ingredients into retail portions - flour, spices, dried goods, specialty salts. Candy and edibles makers standardize their packaging with 24-packs, reducing packaging prep time. Resin artists store pigments, UV resins, and additives where child-resistant certification matters for household safety. Craft supply repackagers buy in bulk and fill these for resale. Diamond painters store bulk drill containers. The 18oz size handles single-batch quantities (enough for a full project) without feeling undersized or wasteful.

How to Use

1. Inspect each jar and lid for chips or cracks before filling.
2. Fill jar, leaving about 0.5 inches of headspace to allow lid compression.
3. Wipe rim clean with a soft cloth to ensure gasket contact.
4. Screw lid on firmly - you should feel slight resistance as the liner compresses against the rim.
5. Perform the child-resistant test: the lid should require two distinct motions (push down + turn) to open, and a child shouldn't be able to open it with one-handed effort.
6. Store upright on a shelf, away from direct sunlight.

Specifications

The 18oz Child-Resistant Glass Jars come as a 24-pack with black lids, are made from 5mm borosilicate glass, measure approximately 3.5" diameter by 3.75" height, and are certified ASTM D3475 child-resistant. Each jar plus lid weighs around 200g, and the glass is dishwasher-safe and heat-rated to 400°F.

Compared to Alternatives

Plastic containers cost less upfront but don't age well. They absorb odors, degrade under heat, and look cheaper at retail. Glass jars cost more initially but appear professional, last indefinitely, and signal premium quality. Buying individual retail jars one-by-one costs 2-3x more per unit than buying a 24-pack. Mason-style jars with standard screw lids don't include child-resistant features, so you'd need to buy CR lids separately and verify they fit - this pack comes ready to use.

Frequently Asked Questions

Are these lids truly child-resistant, or just a screw-cap?

The lids are certified ASTM D3475 child-resistant. Meaning they require a two-handed motion to open and shouldn't yield to single-handed effort by a child. They're not just a screw-cap. The push-and-turn mechanism is the certified design, not grip strength alone.

Can I put these jars in the dishwasher?

Yes, the glass jars are dishwasher-safe on the top rack. Hand-wash the lids, as the gasket liner can degrade with repeated hot cycles. Air-dry lids completely before reusing to prevent mold.

What's the shelf life of the airtight seal?

The gasket lasts indefinitely if kept dry and not exposed to extreme heat. Once you open a jar, the gasket compresses slightly each time you reseal it. Most users report the seal remains functional for 200+ open-and-close cycles before the gasket needs replacement.

Will these jars work for hot-fill applications like jam or hot sauce?

Borosilicate glass handles heat, but the plastic lids don't. don't pour hot liquid directly into the jars and immediately cap them. Let contents cool to room temperature, then seal.

Can I buy replacement lids separately?

Yes, CR lids for this size are available as individual items or smaller packs if you need. Replace gaskets or expand your container stock.

Are there different lid colors available?

This pack includes black lids. Kraft & Kitchen also stocks clear and amber glass jars in various sizes with different lid colors - check the glass jars collection for other options.

Care and Storage

Wash the glass jars with warm soapy water before first use. Dry thoroughly. Store jars upright in a cool, dark place to preserve seal integrity. Hand-wash lids with mild soap and water, and air-dry completely. If the gasket hardens or cracks, replacement lids are inexpensive and available in bulk.

Shipping and Returns

Orders ship within 1-2 business days from our Wisconsin warehouse. The 24-pack is heavy - expect standard ground shipping via FedEx or UPS. 30-day returns on unopened, undamaged packs. If you receive a jar with chips or a defective lid, contact support and we'll make it right.

Related Collections

Explore more sizes in our Glass Jars by Size collection for 5ml, 9ml, 5oz, and other formats. For craft and resin storage, see Resin and Epoxy Craft Supplies. Large-quantity buyers may benefit from our Bulk Pricing options.