Yes as far as I can tell these jars are lead free. I researched before purchasing.

No, I don’t think they are oven safe. They go in the microwave though. I use mine for overnight oatmeal and only put the jar in the microwave for 40 seconds and it was fine.

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Q: Can you bake mini cheesecakes in 4 ounce Mason jars?

I would not put these in the oven. Neither would I put mason jars in the oven. But I guess you could ask the manufacturer. I just use them to make oatmeal in the refrigerator overnight

Q: what are the dimensions of the jars (not of the package the jars come in)?

Lid diameter 2.5”; jar height 2”

4.6/5

Product ID: 737882132

Secure Transaction

12 interest-free installments with tabby

Details

Brand
ComSaf
Material
ガラス
Capacity
125
Special Feature
気密性
Is Dishwasher Safe
Yes

🔒airtight metal lid seals freshness

🧴4oz (120ml) perfect portion size

🧼premium clear glass for easy content check

Frequently Bought Together

ComSaf Mini Mason Jars 4oz - 8 Pack, Regular Mouth Mason Jar with Lids and Seal Bands, Small Glass Canning Jar for Spice, Jam, Honey, Jelly, Dessert, Shower Wedding Favors, DIY Candles Decor

Cotton Farm Grade 100 XL Cheese Cloths - Straining & More; 36x36 Inch; 100% Unbleached Cotton Cheesecloth; Reusable with Hemmed 2 Edges; Ultra-Dense (the finest) Butter Muslin

Description

🔒 Seal your freshness, showcase your style.

AIRTIGHT METAL SEAL - Lock in flavor and keep moisture out with a sleek silver steel lid.
PREMIUM QUALITY CARE - Durable glass with handwash-only care ensures long-lasting elegance.
PERFECT PORTION CONTROL - Compact 4oz jars ideal for curated spice blends or homemade preserves.
CRYSTAL CLEAR TRANSPARENCY - See your spices and jams at a glance—no surprises, only freshness.
VERSATILE STORAGE SOLUTION - From kitchen essentials to creative DIY projects, these jars do it all.

The ComSaf 8-piece 4oz Mason Jar set features premium clear glass jars with airtight silver steel lids, designed to preserve spices, jams, and more. Each jar holds 120ml, offering perfect portion control and versatile use beyond food storage. Handwash recommended to maintain quality.

Specifications

Item Package Quantity	8
Item Weight	113 g
Product Care Instructions	手洗いのみ
Item Volume	120 Milliliters
Unit Count	4 Ounce
Is Microwaveable	No
Manufacturer	ComSaf
Model Number	Mason Jar/4oz/120ml/8pcs
Product Dimensions	32.5 x 17.5 x 9.5 cm; 113.4 g
Quantity	8
Laser Class	気密性
Are Batteries Included	No

Have a Question? See What Others Asked

Can you bake mini cheesecakes in 4 ounce Mason jars?

what are the dimensions of the jars (not of the package the jars come in)?

Are these lead free?

Are they oven safe?

Common Questions

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The delivery time was excellent, and the packaging was secure.

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The product quality is outstanding. Exactly what I needed for my work.

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