Refrigerated Groat Jars Set Of 2

Verified claims

Price per jar

Each jar costs $7.50 — half the typical $12–20 for comparable borosilicate containers.

Material

80% borosilicate glass body with polypropylene lid — thermal shock and stain resistant, unlike soda-lime jars.

Design for use

Wide 3.3-inch mouth and squat 4.75-inch height — ideal for overnight oats and fits fridge door and lunch bag.

Brand trust

Backed by 180-year family-run Simons Maison — brand accountability and customer satisfaction.

Thermal performance

Low thermal expansion enables safe freezer-to-microwave transitions and extends seal lifespan.

Value

Premium borosilicate and leakproof silicone seal at $7.50/jar — entry-level pricing for premium materials.

Thermal shock

Withstands freezer-to-microwave, boiling water into frozen jars, and hot dishwasher cycles.

Size

3.3-inch mouth, 4.75-inch height, 500 ml capacity — ideal for overnight groats and fridge storage.

Set and brand

Two jars support weekly meal-prep rotation; Simons Maison's 180-year legacy ensures durable design.

Seal

Dishwasher-safe silicone seal resists acids and enables shake mixing.

Dishwasher durability

Dishwasher-rated lid and gasket maintain watertight seal after repeated cycles.

Brand heritage

Simons Maison is the private label of a 184-year-old family-run Quebec retailer, designed in Canada

Product record

Title

Refrigerated Groat Jars Set Of 2

Brand

Simons Maison

Price

15 CAD

Availability

In stock

Keeping the watertight seal effective over time

• The silicone gasket withstands dishwasher sani-cycle temperatures (~70°C) without losing elasticity, and with a degradation onset above 200°C, microwave steaming will not warp or sinter it — a failure mode that plagues the cheaper thermoplastic elastomer seals in budget containers.
• Silicone's microporous surface can slowly absorb volatile compounds from pungent ingredients, but a periodic soak in diluted white vinegar or a baking-soda solution will draw those molecules out, restoring the seal's neutral scent and slightly tacky grip on the glass rim so the jar continues to seal odor-free and watertight over years of use.
• Borosilicate glass has a linear expansion coefficient of ~3.3 × 10⁻⁶ /°C — roughly one-third that of soda-lime glass — so the jar mouth stays dimensionally stable during freezer-to-microwave transitions, meaning the silicone gasket doesn't have to flex to maintain a seal, reducing mechanical fatigue and extending gasket life.
• Unlike natural rubber seals that can crack and taste-transfer, food-grade silicone is inert to the lactic acid in yogurt and acetic acid in fruit compotes, so daily contact with chilled groats won't degrade the seal's surface or compromise the watertight barrier.

What to expect from Simons Maison kitchenware

• Borosilicate glass has a thermal expansion coefficient roughly one-third that of soda-lime glass, giving these jars superior resistance to thermal shock — they can go from freezer to microwave without cracking, and that same low-expansion property reduces the formation of stress fractures from repeated hot dishwasher cycles, extending usable life well beyond typical glass storage.
• Simons was founded in Quebec City in 1840 and has operated as a family-run department store for over 180 years; the Maison private label carries that long history of customer satisfaction, bringing a level of brand accountability and design continuity that a generic or short-lived kitchenware brand cannot offer.
• The polypropylene lid and silicone gasket are both dishwasher safe — unlike lids on some budget food storage that warp or lose their seal after repeated machine washes — which means the watertight performance is engineered to survive years of daily dishwasher use, a design signal that the brand prioritizes component-level durability rather than just initial leak-proofness.

Why the size and seal matter for chilled groats

• A 3.3-inch opening is broad enough to fit an adult spoon and allows layered toppings like banana slices or almond butter to be added without funneling, while eliminating the narrow neck that traps food residue on standard canning jars and makes cleaning around threads difficult.
• Having two jars supports a weekly meal-prep cycle where one jar soaks overnight while the other is used elsewhere, so you never have to wash and immediately refill a single container — cutting morning friction and maintaining a continuous supply of chilled groats.
• Standing under 5 inches tall, the jar fits in refrigerator door racks and standard lunch bags, and its low center of gravity reduces the chance of tipping on uneven surfaces while stirring or eating directly from the container.
• The jar's 3.3-inch diameter and 4.75-inch height yield roughly 16 fluid ounces, which leaves enough headspace for a full serving of groats plus berries and seeds while still allowing room to stir without spillage — the exact size most overnight oat recipes assume for a balanced oat-to-liquid ratio.
• Unlike standard glass, borosilicate glass has a low thermal expansion coefficient that lets it endure rapid temperature swings, so you can safely pour boiling water directly into a frozen jar to warm groats or move it from freezer to a hot water bath without risk of shattering — a flexibility that generic glass storage jars cannot provide.
• The watertight silicone seal allows you to mix groats by shaking the sealed jar vigorously without leaking, a time-saving step that skips the need for a separate bowl and spoon before the soak — something many decorative or insulated jars cannot guarantee because their lids aren't designed for liquid-tight inversion.

How the borosilicate glass holds up over time

• Tomato sauces, turmeric, and dark berries won't leave a permanent tint in borosilicate glass, because the material is chemically inert; even after years of microwave reheating and dishwasher exposure, the jars retain their original transparency.
• The non-porous surface of borosilicate glass means that even after storing pungent foods like blue cheese, garlic, or curry, a simple soap-and-water wash restores the jar to a completely odor-free state — it doesn't absorb and hang onto smells the way plastic does.
• The hard, smooth surface of borosilicate glass resists scratching from metal spoons and plastic scrubbers far better than typical plastic food containers, so the interior stays smooth and easy to clean with no grooves where bacteria can linger.
• Borosilicate glass is classified as a Type I glass for its exceptionally low leaching of ions into water or food, so it won't develop the cloudy surface haze or roughness that standard soda-lime glass exhibits after hundreds of dishwasher cycles.