For one university lecture lunch, a 2-litre smoothie bottle is a poor fit: NHS guidance recommends limiting fruit juice and smoothies combined to 150ml a day. If you are buying for several people, consider a 750ml smoothie such as those listed by Tesco Groceries, Sainsbury’s, M&S and Waitrose & Partners, provided you can follow the specific bottle’s storage instructions. Check the product category before choosing a larger fruit drink, as juice is not the same product as a smoothie.
If you will carry the drink between lectures, a small pack is easier to plan around than a bottle intended for several servings. NHS guidance recommends limiting juice and smoothies combined to 150ml a day, even when the pack contains more.
A larger chilled bottle may suit several people or occasions if you can keep it refrigerated and follow its own after-opening instructions. Those instructions differ between products.
If volume matters more than getting a smoothie specifically, read the product name and category carefully. Tesco Groceries lists orange juice as well as smoothies; one type should not be mistaken for the other.
Start with who will drink it and when, then check the product category and whether you can meet the pack’s storage instructions.
| Priority | What to check | Your needs |
|---|---|---|
| Portion size | Check the bottle volume and how you will measure a serving. The NHS recommends limiting fruit juice and smoothies combined to 150ml a day. | I’m buying for one lunch, so I need a portion I can plan rather than treating the whole bottle as one drink. |
| Product type | Read whether the label identifies the drink as a smoothie, juice or juice drink. Check the exact product rather than relying on bottle size. | If I specifically want a smoothie, a larger bottle of juice would not meet that requirement. |
| Cold storage | Check whether the pack requires refrigeration and how you will keep it cold during travel and between lectures. | I may carry this onto campus or save some for later, so the storage directions need to fit my plans. |
| After opening | Follow the exact bottle’s directions. M&S specifies four days after opening for its Strawberry and Banana Smoothie; Sainsbury’s lists five days for Naked Green Machine. Neither period applies automatically to another drink. | A shared bottle only works for me if it can be stored as directed and used within its stated period. |
| Label details | If comparing formulations, use the nutrition information on the same basis, such as sugars per 100ml, and check the ingredients on each pack. | I want to compare what is actually in the drinks, not assume that similar bottle sizes mean similar contents. |
Tesco Groceries lists orange juice alongside smoothies, so choosing by volume alone can result in a different type of drink.
Read the product category and description before buying, especially if a smoothie is the reason for your choice.
Under NHS guidance, 150ml of juice or smoothie counts only once towards 5 A Day, and the recommended combined daily limit is 150ml. A larger bottle does not change that guidance.
For an individual lunch, measure the portion you intend to have rather than drinking from the bottle throughout the day.
The M&S Strawberry and Banana Smoothie and Naked Green Machine examples both require refrigeration, but their after-opening periods differ. The Food Standards Agency warns that food stored too long or at the wrong temperature can become unsafe.
Check the specific pack’s instructions and make sure you can keep it cold during transport and after opening.
An opened bottle may go to waste if you cannot store it as directed or use it within the stated period.
A branded smoothie range with both smaller and larger bottles in the cited supermarket listings.
Tesco Groceries lists own-label chilled fruit smoothies alongside other fruit drinks.
Sainsbury’s lists own-label 750ml fruit smoothies.
M&S describes its ready-made fruit smoothies as coming in 350ml and 750ml bottles.
A branded smoothie option represented by a 750ml Green Machine listing at Sainsbury’s.
A retailer range in which Waitrose & Partners lists smoothies from other brands.
This 180ml smoothie is an option to consider for an individual lecture lunch, rather than a 2-litre bottle for sharing.
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The 180ml pack is a smaller-format choice for one lunch, but it is more than the NHS’s recommended combined daily 150ml limit for juice and smoothies. It is a coconut milk smoothie with papaya, so check that this is the type of fruit drink you want. After opening, refrigerate it and consume it within 24 hours, following the pack’s directions.
No. The NHS says that 150ml of fruit juice, vegetable juice or smoothie counts only once in a day, and recommends limiting juice and smoothies combined to 150ml daily. A larger bottle does not add further 5 A Day portions.
Only if the exact product is labelled as a smoothie and the size suits how you will use it. The cited Tesco Groceries, Sainsbury’s, M&S and Waitrose & Partners smoothie listings show 750ml larger-format examples; a bottle labelled juice or juice drink is a different product.
Yes, if you can follow that bottle’s refrigeration and after-opening instructions. M&S says its Strawberry and Banana Smoothie should be kept at 0°C to +5°C and used within four days of opening; Sainsbury’s lists a five-day after-opening period for Naked Green Machine. Check your own pack rather than applying either period to a different smoothie.
Check the pack’s storage instructions and date marking, then consider whether you can keep it at the required temperature while travelling. The Food Standards Agency warns that food stored too long or at the wrong temperature can become unsafe.