Voucher Magpie
RonFreedelivery
Free delivery
Free shipping on orders
As advertised in the site banner. Check the delivery cost at checkout.
Grain Up Discount Codes for October 2026
40%Best offer for everyone
3Deals, no code needed
Current Grain Up voucher codes and offers
20%subscribe
20% off Build a Box and pot bundles on subscription
Subscription price on Build a Box packs and Build Pot Bundles. Auto-renews; skip or cancel any time.
40%subscribe
Subscribe and save up to 40% on 300g boxes
40% off on a 4-weekly subscription, 30% off every 6 weeks, 20% off every 8 weeks. Skip or cancel any time.
Today's Grain Up deals
Updated 5 October 2026| Offer | Saving | Ends |
|---|---|---|
| Free shipping on orders Deal | Free | Ongoing |
| 20% off Build a Box and pot bundles on subscription Deal | 20% | Ongoing |
| Subscribe and save up to 40% on 300g boxes Deal | 40% | Ongoing |
About Grain Up
Grain Up is a UK breakfast brand making overnight oats. Its mixes combine gluten-free rolled oats with pea protein, dates and flaxseed, and the range is plant-based and suitable for vegans. There are four flavours at the moment: Blueberry Muffin, Banana Bread, Berry Chia and Choconut Brownie.
You buy the oats dry, either as single-serve 60g pots or 300g boxes. To prepare them you add milk, stir, and leave them in the fridge overnight, or give them a few minutes if you're in a hurry. Single pots cost £2 and 300g boxes £6. There are also build-your-own bundles of 8, 16 or 24 pots, and boxes of 4, 6 or 8.
Most products can be bought once or on a subscription, and the subscription price is lower. The 300g boxes have the biggest subscription savings, and the length of the delivery gap sets the discount. The brand trades as Grain Up Group Ltd and sells online across the UK.
Grain Up delivery and returns
| Delivery | The site banner advertises free shipping; delivery times vary by location and you get an email once your order ships. |
|---|---|
| Returns | There is a 30-day return policy, but food is perishable and is excluded from returns, so report any damaged or wrong items straight away. |
How to use a Grain Up voucher code
- Tap Get code on the offer you want. We copy the code for you and open Grain Up in a new tab.
- Check the offer's Terms first: some codes need a minimum spend, are for new customers only, or exclude sale items.
- Add what you want to your basket on grainup.co.uk.
- Go to the checkout and choose your delivery option.
- Paste the code into the discount code or promo code box and apply it. Check the discount shows in your order total before you pay.
- Didn't work? Tap Didn't work? under the code so we can recheck it, and read why codes fail.
Ways to save at Grain Up
- Subscribe to 300g boxes: a 4-weekly delivery is listed at 40% off (£3.60 instead of £6).
- Build a pot bundle of 8, 16 or 24 pots and mix flavours rather than buying single pots.
- Subscribe to a Build a Box or pot bundle for 20% off each delivery, and skip or cancel when you need to.
- Join the email list for deals and early access to new products.
Grain Up customer service & reviews
Contact Grain Up
What shoppers say
Frequently asked questions
What's the best Grain Up code today?
There's no Grain Up discount code to copy right now. The best offer is subscribe and save up to 40% on 300g boxes (best offer for everyone), no code needed.
Does Grain Up do student discount?
We don't know of a student discount at Grain Up at the moment.
Does Grain Up offer a Blue Light or Armed Forces discount?
We don't know of a Blue Light or Armed Forces discount at Grain Up at the moment.
Does Grain Up offer free delivery?
The site banner advertises free shipping; delivery times vary by location and you get an email once your order ships.
What is Grain Up's returns policy?
There is a 30-day return policy, but food is perishable and is excluded from returns, so report any damaged or wrong items straight away.
How do I contact Grain Up customer service?
Use the help centre on the Grain Up website.
Can I use more than one Grain Up discount code?
Usually not: most stores, including Grain Up, accept one discount code per order. Automatic deals and sale prices can often be combined with a code, so check the terms on each offer.
Does Grain Up offer a first-order discount?
We don't have a first-order code for Grain Up right now. Sign up for alerts and we'll email you if one lands.
Can I use a Grain Up discount code on sale items?
It depends on the code. Many discount codes exclude items that are already reduced, so open Terms on the code before you use it.
When does Grain Up usually run 20% off promotions?
Over the last two years we've listed Grain Up codes or deals worth 20% or more in October. Sign up for alerts to hear when the next one lands.
Why didn't my Grain Up code work?
Most codes exclude gift cards and items already reduced, and some need a minimum spend or are for new customers only. Open Terms on the code, or tap "Didn't work?" and we'll recheck it.
How do I use a Grain Up discount code?
Tap Get code and we copy it for you. Add your items to the basket on the Grain Up website, then paste the code into the discount or promo code box at checkout.
Popular stores
More food & drink discount codes
Grain Up and similar shops
All store spotlights
GU
Grain Up: overnight oats in pots and boxes, with subscription savings
Plant-based, gluten-free overnight oats in four flavours. Single pots cost £2 and you can build your own bundle, with lower prices on subscription.
Amy
nonni: low-sugar sparkling electrolyte drinks in two flavours
A small British brand making sparkling electrolyte drinks in grapefruit and lemon, sold in 4-can packs and in London cafés.
Amy
Hotel Chocolat spotlight: advent calendars, the Velvetiser and Halloween treats
Hotel Chocolat's 2026 advent calendars, the Velvetiser hot chocolate machine and Halloween treats, plus its £10 off £60 offer and VIP.ME perks.
Amy