Best Meal Prep Containers UK: 3 Practical Picks

Which Should I Choose?

Start with the use case, not the biggest pack. Plastic keeps the initial cost and carrying weight down. Glass is more comfortable for repeated reheating and resists stains. A larger set only earns its cupboard space when you already prep more than five main meals.

• New to meal prep or filling a freezer: choose the budget plastic multipack.
• Taking one hot lunch to work each weekday: choose the five-container glass set.
• Prepping lunches, dinners and leftovers together: choose the larger glass set.

Size and Material Guide

Most adult lunch portions fit best in roughly 900ml to 1 litre. Use smaller tubs for snacks and sauces, and larger containers for batch bases or shared portions. Rectangular boxes make better use of fridge space than round tubs.

Glass or Plastic: What the Choice Actually Turns On

It is not durability, which is where most comparisons start. It is what you cook. If your prep runs to chilli, bolognese, curry, fajita bowls or tomato pasta, plastic will stain and hold smells, and it will do it within weeks rather than years. Glass will not. If you mostly prep salads, sandwiches, rice bowls and snacks, that whole argument disappears and plastic is the sensible buy.

The second question is where you eat. Glass moving from fridge to microwave to table is no problem at all. Glass carried across a city in a rucksack, five portions at a time, is a genuine weight you will notice and eventually resent. That is the real case for plastic, more than the price is.

For reheating, follow the instructions on the exact product rather than a general rule. Glass bases are the more forgiving choice for daily reheating; plastic needs to be marked microwave-safe, vented or uncovered as the listing says, and treated carefully with oily or tomato-rich food.

Compartments, Tubs and Plain Boxes

Divided or bento-style boxes solve one specific problem: keeping foods apart. Chicken away from salad, rice away from sauce, fruit away from yoghurt. They are worth it when a meal falls apart if it mixes, and a nuisance when it does not, because the dividers take up room that a portion of curry or stew needs.

Two compartments suit a main plus a side. Three suit a protein, a carbohydrate and vegetables, but each one is smaller than it looks in the listing photograph, so check the total volume rather than counting sections.

Tubs are the other end of the same decision. They are for the batch rather than the meal: cooked rice, a pot of chilli, roasted vegetables, sauce, portions bound for the freezer. Round tubs are fine for this and often cheaper, at the cost of using fridge space less efficiently than a rectangle. Most people who prep seriously end up with both formats, boxes for assembled meals and tubs for components.

How Many You Actually Need

The two failure modes are buying too few and running out on Thursday, or buying a mixed 50-piece set that turns into a cupboard of unmatched lids. Neither is about the price.

The arithmetic is simple: meals prepped per week, plus two or three spare so the wash cycle never blocks the next prep. One hot lunch each weekday means five in use and around eight owned. Lunches and dinners for one person means ten to twelve. Add a household member and the number roughly doubles, but the spares do not need to.

Buy fewer sizes than you think you need. Matching boxes stack, share lids and can be swapped between meals; a set of eight identical containers is more useful in practice than fifteen in five different shapes.

Budget or Premium

Cheap containers are not bad containers, and expensive ones are not automatically worth it. What you pay more for is lid mechanism, seal quality and how long the set stays matched, and those matter in proportion to how often you carry food and how much you mind replacing things.

Buy budget first if you are not yet certain meal prep will stick. The honest test is whether you are still doing it in two months, and a plastic multipack costs little enough to be a reasonable bet on the answer. Buy better if you already prep weekly, commute with the boxes, or have replaced a leaking lid more than once.

Buying Cheap Meal Prep Containers at the Supermarket

You do not have to order online to start. Asda, Tesco and Sainsbury’s sell food storage tubs in their homeware ranges, while Aldi and Lidl usually sell containers as limited-time middle-aisle offers rather than permanent stock. Supermarket tubs can be perfectly good for meal prep, as long as they pass the same checks as anything you would buy online.

Ranges change through the year and vary by store size, so check in store or on the retailer’s own website rather than trusting an old list. The label tells you more than the brand does.

• Size: find the millilitre figure on the pack. A full lunch needs roughly 900ml to 1 litre; smaller tubs are for snacks, sauces and sides.
• Microwave and freezer marks: check for both, and check whether the microwave claim covers the lid or only the base.
• Lid: a clip-lock or gasket lid is the one to carry in a bag. A push-on lid is fine for the fridge.
• Shape: buy one rectangular size in a batch. Matching tubs stack and share lids; a mixed bundle of shapes turns into lid clutter.

Check Heat, Lid and Care Claims Before Buying

Treat “leakproof”, microwave-safe, freezer-safe and dishwasher-safe as listing claims to verify for the exact product and variant. The base and lid can have different care instructions, and lids often need venting or removing before reheating.

Dishwasher-safe is the one that catches people out, because it frequently applies to the base and not the lid. Clip mechanisms and silicone seals are often top-rack only or hand-wash, and ignoring that is the usual reason a lid stops sealing after a few months. This matters more than it sounds: if washing ten boxes by hand becomes the worst part of Sunday, the habit is what breaks, not the container.

For commuting, test a new lid over the sink before putting curry, chilli or dressing in a bag. For glass, avoid sudden temperature changes and follow the current manufacturer guidance.

Build a Useful Set, Not a Full Cupboard

Begin with enough matching boxes for the meals you prep now. Add small sauce pots or larger freezer tubs only when that gap repeatedly causes friction. This keeps the setup easier to store and avoids paying for formats you do not use.