12oz Glass Mason Jar Bulk Regular Mouth Food Grade

Optimal Size: These jars are available in various sizes to cater to a multitude of canning requirements. They’re ideal for home use, cafes, or commercial needs. Versatile Use: These glass jars are perfect for canning a wide array of foods. Their diamond pattern also adds an elegant touch to your kitchen decor and can even be used as stylish decor items.

The Perfect 12 oz Glass Mason Jars for Your Brand

Finding the right container is often the hardest part of product development, but our 12 oz glass mason jars hit the ultimate “sweet spot.” This size is large enough for substantial food portions and luxury candles, yet compact enough to keep shipping costs efficient. We designed these jars to bridge the gap between standard canning needs and high-end retail packaging.

Premium Build & Food-Grade Safety

When you choose Reihey jars, you aren’t just getting glass; you are getting a professional-grade vessel built to handle the heat. Our 12oz clear flint glass jars are engineered for durability and safety:

• Food-Grade Certified: Lead-free and BPA-free glass ensures your jams, honey, or sauces stay pure.
• Thermal Shock Resistance: Designed to withstand high-temperature shifts, making them ideal for hot fill glass containers and sterilization.
• Crystal Clear Clarity: We use high-quality flint glass to provide maximum product visibility, letting your colors pop on the shelf.

Straight-Sided Design for Flawless Labeling

We know that branding is everything. Unlike traditional rounded jars that make labeling a nightmare, our straight sided glass jars feature a smooth, vertical profile. This shoulder-less design allows for:

• Easy Label Application: No wrinkles or bubbles—just a smooth surface for your stickers or wraps.
• 360° Branding: Plenty of real estate for ingredient lists, logos, and barcodes.
• Modern Aesthetic: A sleek, clean look that fits everything from rustic farmhouse kitchens to minimalist modern studios.

Whether you are looking for bulk glass jars with lids for a commercial launch or clear glass preserving jars for a boutique shop, these 12 oz units offer the versatility and professional finish your brand deserves.

Technical Matrix: 12 oz Glass Mason Jars Specifications

Every batch of our 12 oz glass mason jars is engineered to meet strict commercial packaging standards. Whether you are running a high-speed hot-fill line or crafting premium artisan goods, these precise technical dimensions ensure seamless compatibility with your capping and labeling equipment.

Our straight sided glass jars feature uniform wall thickness to maximize thermal shock resistance during pasteurization. The standard 70-450 continuous thread neck finish allows you to switch effortlessly between standard two-piece canning lids, bulk metal closures for commercial condiment jars, or one-piece plastic storage caps. For operations scaling up into larger beverage lines or tasting rooms, we also provide specialized glassware designs like our 1oz Juno shooter shot glasses to keep your branding consistent across all product lines.

Engineered for Versatility

Why Brands Choose Reihey 12 oz Glass Mason Jars?

At Reihey, we engineer our 12 oz glass mason jars to do more than just hold a product—they elevate your entire brand. High-volume producers and artisan brands choose our wholesale packaging because it bridges the gap between commercial-grade durability and premium shelf appeal. Whether you need a reliable straight sided glass jar for food logistics or a sleek vessel for high-end retail, our containers deliver unmatched structural integrity.

Flawless Branding with Smooth, Shoulder-less Sides

Standard 12 ounce canning jars often feature heavy ridges or embossed logos that interfere with custom labeling. Reihey jars are designed with completely smooth, shoulder-less sides. This straight-sided profile ensures your labels apply flat without bubbling, wrinkling, or peeling.

• Maximum Label Area: Seamless vertical walls allow for full-wrap label designs.
• Unobstructed Product Visibility: Made from ultra-clear flint glass to showcase the natural colors of your product.
• Versatile Aesthetics: Clean lines fit both modern minimalist branding and classic, rustic aesthetics.

Commercial-Grade Heat Resistance

Our manufacturing process utilizes high-quality flint glass built to withstand rigorous commercial processing environments. These clear glass preserving jars handle thermal stress effortlessly, making them the top choice for hot-fill food production and candle pouring.

• Hot-Fill Compatible: Safely handles high-temperature filling without cracking or thermal shock.
• Smooth Sided Candle Vessels: Perfect for holding hot molten wax and maintaining structural integrity during extended candle burn times.
• Uniform Wall Thickness: Engineered to eliminate weak spots, ensuring consistent heat distribution.

Airtight & Leak-Proof Closures

A premium jar requires an equally dependable seal. Our 12 oz line features a precision-engineered 70-450 continuous thread jar neck finish, making it compatible with a wide variety of regular mouth closures.

Every closure options screws down tightly onto our regular mouth mason jars, locking in freshness, preventing leaks, and extending product shelf life for global distribution.

Endless Ways to Use Your 12 oz Jars

From Kitchen to Studio

Our 12 oz glass mason jars are engineered for ultimate versatility, seamlessly transitioning from commercial food production to artisanal crafting studios. This mid-size capacity is the industry sweet spot for a wide array of premium applications.

Artisan Food Packaging

These 12oz clear flint glass jars are the premier choice for gourmet food brands. The high-clarity glass beautifully showcases vibrant products like:

• Boutique jams, jellies, and fruit preserves
• Artisanal honey, specialized syrups, and agave
• Small-batch pickled vegetables, relishes, and chutneys
• Gourmet dipping sauces, salsas, and marinades

Premium Candle Crafting

As smooth sided candle vessels, these jars offer an elegant, minimalist aesthetic for luxury candle lines. The straight-sided profile ensures uniform wax cooling, while the thick, heat-resistant glass safely handles high fragrance loads and consistent pour temperatures. They pair excellently with both metal continuous thread lids and rustic cork closures.

Organization & Portion Control

In the health and wellness space, these economy food storage bottles function perfectly for daily meal prep and portion storage. They are highly sought after for overnight oats, parfaits, dry spice storage, and loose-leaf teas. Knowing the difference between borosilicate glass vs soda-lime helps brands choose the right thermal performance, and our commercial-grade soda-lime formulation provides the perfect balance of durability and clarity for daily kitchen utility.

Event Favors & Custom Gifting

The sleek, shoulder-less design makes these jars a blank canvas for customization. Event planners and corporate clients frequently utilize them for upscale wedding favors, DIY hot cocoa mixes, curated bath salts, and personalized corporate gifts that end-users will keep and reuse long after the event.

Bulk Ordering & Flexible B2B Supplies

We understand the demands of scaling your business, which is why we offer flexible B2B purchasing options for our 12 oz glass mason jars. Whether you are a growing artisan brand or a large-scale manufacturer, our supply chain is built to handle your volume requirements with seamless efficiency.

• Case Configurations: Securely packed for immediate wholesale distribution and easy inventory management.
• Full Pallet Availability: Maximized freight efficiency and bulk discounts for high-volume commercial production lines.

As a dedicated manufacturer, Reihey provides comprehensive custom manufacturing services to make your packaging stand out on the shelves. We offer custom glass colors, proprietary lid finishes, and tailored embossing options to match your exact brand identity. If you are looking to expand your product line further, explore our diverse options like our glass jars for candies packing to find the perfect container for every product in your catalog.

Reihey Transit Safe Delivery Assurance for 12 oz Glass Mason Jars

We know that buying bulk glass jars with lids requires absolute confidence in shipping. A broken jar is a lost profit. That is why we engineered the Reihey Transit Safe Delivery Assurance system to guarantee your order arrives intact, flawless, and ready for the production line.

Heavy-Duty Packaging Design

We do not just ship glass; we protect your investment. Every batch of our 12 oz glass mason jars is packed using commercial-grade, multi-wall corrugated dividers. This heavy-duty packaging prevents glass-to-glass contact, absorbing high-impact shocks during transit and handling. Whether you are ordering a few cases or a full pallet of 12oz clear flint glass jars, our drop-tested packaging ensures maximum drop resistance.

30-Day Protection Policy

Your peace of mind is our priority. Every wholesale shipment of our straight sided glass jars is backed by a comprehensive 30-day damage guarantee.

• Immediate Replacement or Credit: In the rare event that any transit damage occurs, we cover it.
• Hassle-Free Claims: Just send us a photo of the damaged items within 30 days of delivery.
• Zero-Risk Sourcing: We absorb the risk so your supply chain never skips a beat.

We are committed to sustainable business practices from production to delivery. To see how we prioritize eco-friendly initiatives throughout our supply chain, learn about how glass bottles are recyclable and how we reduce waste across our entire manufacturing network.

Frequently Asked Questions

Are these 12 oz glass jars dishwasher and microwave safe?

Yes, our 12 oz glass mason jars are 100% dishwasher safe for easy cleaning. The high-quality flint glass can also be used safely in the microwave. However, you must remove the metal closures before microwaving, as metal lids are not microwave-safe.

Do these jars come with the lids included, or are closures sold separately?

We offer complete flexibility for your packaging needs. You can purchase these bulk glass jars with lids as a complete set, or order the glass containers and closures separately. We supply a variety of options, including the standard 70-450 continuous thread lid, a gold metal closure, and aluminum lids to match your brand aesthetic.

Can I use these mason jars for pressure canning or vacuum sealing?

Absolutely. These clear glass preserving jars are engineered as commercial-grade hot fill glass containers. They safely withstand the high temperatures required for water bath canning, pressure canning, and commercial vacuum sealing processes. The metal plastisol lined closures ensure an airtight, leak-proof seal that preserves product freshness.

What size label template fits best on the side of the 12 oz straight-sided jar?

Thanks to the straight sided jar design with smooth, shoulder-less walls, labeling is incredibly simple. The ideal label size for the maximum wrap-around coverage is 3 inches in height by 8.5 inches in width. For a standard front-and-back or rectangular label, a 3-inch height by 2.5-inch width template fits perfectly within the flat label panel.