The OATOLOGY overnight oats jar Breakfast’s ready. You made it last night.

Milk to the line, one lid of oats, both lids on. The fridge does the rest.

Shop the jar How it works
  • Free next-day UK delivery
  • Leak-proof or your money back
  • Dishwasher safe
  • BPA-free glass and stainless steel
  • The jar measures the milk
  • The lid measures the oats
The next morning: the steel lid comes off, then the silicone seal, and the overnight oats are ready to eat.
  1. Tonight
  2. Overnight
  3. Morning

Tonight, ninety seconds.

Three steps, in this order. No scales, no measuring jug, no guessing.

  1. Milk to the line

    Pour milk up to the MILK line on the back of the jar. That’s 150ml, no measuring jug needed.

  2. One lid of oats

    Turn the steel lid over and fill it with oats, slightly heaped. That’s 50g. Tip it in.

  3. Both lids on, into the fridge

    Add any extras you like. Press on the silicone seal, screw the steel lid on over it, and into the fridge it goes.

  1. Tonight
  2. Overnight
  3. Morning

Then go to bed.

Into the fridge, and that’s your part done. The fridge does the night shift.

A closed jar of strawberry overnight oats with the steel lid on and the spoon clipped to the side, on a round oak board.
A jar of blueberry and granola overnight oats on a wooden board, with the spoon clipped to the blue holder.
  1. Tonight
  2. Overnight
  3. Morning

Eat it at home, or take it with you.

Lids off and breakfast is ready. Running late? Both lids back on, clip the spoon to the side, and into your bag it goes. When you’re done, the spoon fits inside for the journey home.

Leak-proof, or your money back.

We tested it obsessively. If it ever leaks in your bag, full refund, no questions asked.

“I can carry it in my bag without worrying about spills, which is a huge plus.”

Abhishek Kurmi,

What it replaces

  • Kitchen scales
  • Measuring jug
  • Leaky plastic tub
  • Carrier bag

One jar. The MILK line measures the milk, the lid measures the oats, and the seal means it can go straight in your bag.

Choose your pack

One for you, or one for everyone?

The more jars you buy, the less each one costs.

2 jars, each with both lids, a spoon, and its holder

The OATOLOGY overnight oats jar

4.95 (19 reviews)

Colour: Oat Blue

Choose a pack
£17.99 was £21.99 £9.00 per jar
  • Free next-day UK delivery
  • Leak-proof or your money back If it ever leaks in your bag, full refund
  • Dishwasher safe Jar, both lids, spoon, and holder
  • BPA-free glass and stainless steel Glass jar, stainless steel lid and spoon

Not suitable for the microwave.

In the box

  • 2 glass jars (450ml)
  • 2 steel measuring lids
  • 2 silicone sealing lids
  • 2 stainless steel spoons
  • 2 clip-on spoon holders

Nothing else to buy, and you never forget a spoon.

“Spoon is a perfect size, when finished eating it fits inside jar and lid closes for transporting in your bag.”

LLB,

Over 100,000 jars sold.

“Wonderful size, beautiful design, sturdy but elegant, with a spoon attached that makes them super easy to use”

Laura de la Garza,

The jar, up close

Every part has a job.

An empty OATOLOGY jar with the steel lid on, the blue holder band, the spoon clipped behind the lid, and the arch logo embossed on the glass.
  1. Close-up of the stainless steel lid, with the OATOLOGY arch logo on top.

    Steel lid that measures

    Stainless steel. Turn it over and one slightly heaped lid is 50g of oats.

  2. Close-up of the blue silicone sealing lid, with the OATOLOGY arch logo on it.

    Silicone sealing lid

    Sits under the steel lid and makes the jar leak-proof.

  3. Close-up of the milk markings on the glass, with milk inside.

    Milk markings

    Embossed on the back in ml and US fl oz, with a MILK line at 150ml.

  4. The stainless steel spoon clipped to the silicone holder on the jar.

    Spoon and clip-on holder

    A stainless steel spoon, and a silicone holder that clips it to the jar. You never forget a spoon.

  5. An empty OATOLOGY jar on a round wooden coaster, with the arch logo embossed on the glass.

    Thick glass

    450ml of thick, break-resistant glass, with the OATOLOGY arch embossed on the front.

  6. Looking down into the wide mouth of an open jar of overnight oats.

    Wide mouth

    76mm across inside.

All of it goes in the dishwasher. None of it goes in the microwave.

“It has graduation marks for the milk in millilitres as well as US oz which are clearly visible.”

Aisha,
An OATOLOGY jar of apple and cinnamon overnight oats with the spoon clipped on, beside its teal gift box tied with a coral ribbon and a blank gift tag, on a kitchen table at Christmas with pine, cinnamon sticks and a red apple.

Christmas is close

Most presents get a week. This one gets every morning.

A jar is a present they’ll use before work, at the weekend, and every morning after that. Free next-day UK delivery.

“Well my brother was chuffed with this as his birthday gift.”

Little Pig Reviews,

One to give, one to keep. See all packs

  • Free next-day UK delivery
  • Leak-proof or your money back
  • Dishwasher safe
  • BPA-free glass and stainless steel

What goes in tomorrow

Made in the OATOLOGY kitchen.

All recipes
The kit on a wooden table: an empty jar with the steel lid and clipped spoon, a jar of mango overnight oats, a spare steel lid, and a spoon.

Why we made it

“I can’t be bothered to do this every morning.”

My wife said it about breakfast. So we decided to build it properly. The leakproof sealing lid took four versions and two trips abroad to the factory, until the carrier bag became unnecessary. The lid measures the oats, the milk line went on the glass, and the scales and jug went back in the cupboard for good.

She still uses hers every morning. Now it takes ninety seconds.

Read our story

We called it OATOLOGY, because we ended up taking breakfast far more seriously than any reasonable person should.

“I really really don’t need a jar specifically designed for me to construct my favourite breakfast in.” … “I now have four”

Sam Graham,

Questions

Your questions, answered.

What is the OATOLOGY overnight oats jar?

A 450ml glass jar made for overnight oats, with the portion system built in. The steel lid measures your oats and the MILK line on the glass measures your milk. It comes with a silicone sealing lid, a stainless steel spoon and a clip-on spoon holder.

How do I make overnight oats in it?

Pour milk up to the MILK line, which is 150ml. Fill the steel lid with oats, slightly heaped, which is 50g, and tip it in. Add any extras you like, press on the silicone sealing lid, screw the steel lid on over it and leave it in the fridge overnight.

Is it leak-proof?

Yes. The silicone sealing lid sits under the steel lid and seals the jar, so it can go in your bag. If it ever leaks in your bag, you get a full refund.

Can it go in the dishwasher or the microwave?

The jar, both lids, the spoon and the holder all go in the dishwasher. It is not suitable for the microwave.

What comes in the box?

Each jar comes with a steel measuring lid, a silicone sealing lid, a stainless steel spoon and a clip-on spoon holder. Choose a pack of 1, 2 or 4 jars.

How fast is delivery?

UK delivery is free and next-day.

Tomorrow’s breakfast starts tonight.

Pack size
£17.99 was £21.99 £9.00 per jar
  • Free next-day UK delivery
  • Leak-proof or your money back
  • Dishwasher safe
  • BPA-free glass and stainless steel