ComSaf 300 ml Glass Overnight Oats Jars, Pack of 4 with Bamboo Lids

Usage tips

At 300 ml, each ComSaf jar is sized for smaller portions of overnight oats, yoghurt or chia pudding. The stated usable capacity is 270 ml, so allow for that when planning a serving. The wide 8.6 cm opening makes it easier to fill and reach the contents. For a workday breakfast, prepare a portion in the fridge and add any toppings when you are ready to eat.

The screw-top lid and silicone seal are intended to help keep contents contained in a bag, while the see-through glass makes it easy to identify what is inside. The jars are designed for cold storage and are not suitable for the microwave. The glass body is dishwasher safe, the lids should be washed by hand.

Technical overview

• Pack size: 4 jars
• Capacity: 300 ml total per jar, 270 ml usable
• Material: Glass and silicone, the product listing specifies bamboo lids
• Dimensions: 8.6 × 8.6 × 8.6 cm per jar
• Closure: Screw top with silicone seal
• Care: Glass body is dishwasher safe, hand-wash the lids
• Other details: Freezer safe, stackable, BPA-free and lead-free, includes 6 white labels measuring 5.5 × 3.5 cm

Where it shines

These jars suit meal prep when you want individual portions ready in the fridge rather than a larger container to scoop from each morning. Their 300 ml capacity also makes them useful for storing seeds, nuts, grains or dried fruit, and the included labels can help distinguish contents. Compared with a divided breakfast pot, each jar is a single compartment, so it is better suited to foods that can be stored together or toppings added later.

Buyers praise the size and appearance, including their use for overnight oats and homemade yoghurt. Feedback on the lids is less consistent: some buyers like the seal, while others report fit or build concerns, and some question whether the lids are bamboo as described. That mixed feedback is worth weighing up if the lid material or a particularly reliable fit is central to your choice.

You’ll like it if you want reusable, see-through jars for chilled portions and dry-store ingredients. Better avoided if you need a microwave-safe container or want toppings kept in separate compartments.

Before you decide

How much does each jar hold? The stated capacity is 300 ml, with 270 ml listed as usable. This makes them suited to smaller portions rather than large meal-prep servings.

Can the jars go in the dishwasher? The glass body is listed as dishwasher safe. The lids are specified for hand washing.

Are they suitable for hot food or microwave use? The product is described for cold storage and is not suitable for the microwave.

Should you buy it?

Choose this four-jar set if your priority is portioned fridge storage for overnight oats, yoghurt, chia pudding or pantry staples, and you value a wide opening and clear glass. The included labels add a practical touch for organising several ingredients. The stated lid material and mixed buyer feedback on lid fit are the main points to consider before deciding, if you need microwave use or separate spaces for breakfast toppings, a different container format would be more suitable.