Key takeaways
- A chest freezer gives more space for your money and suits big autumn batches
- An upright is easier to organise and fits a smaller floor area
- Compare the annual kWh on the energy label, not just the type
- A full, closed freezer keeps food frozen for about 48 hours in a power cut
- Check the climate class before putting any freezer in an unheated garage
- Bag produce flat in labelled portions so nothing gets lost at the bottom
If you grow lots of fruit and veg and freeze it in big batches, a chest freezer is usually the better buy. If you mostly use the freezer every day for cooking, or floor space is tight, an upright is much easier to live with.
This guide compares the two for gardeners: price, running costs, space, organisation, garages and power cuts. Once you’ve picked one, our guide on how to freeze garden produce shows you how to fill it.
Chest vs upright freezer at a glance
A chest wins on space for your money and holding the cold. An upright wins on organisation and floor space.
| Chest freezer | Upright freezer | |
|---|---|---|
| Price for the space | Usually lower | Usually higher |
| Running cost | Often a little lower | Often a little higher |
| Organising | Needs baskets and boxes | Drawers keep it tidy |
| Floor space | Takes more | Takes less |
| Power cut | Tends to hold longer | Loses cold faster |
| Defrosting | Usually manual | Often frost-free |
| Best for | Big autumn gluts | Everyday kitchen use |
Prices change a lot, so compare models of the same size and energy rating when you shop.
Which is cheaper to run?
A chest freezer is often a little cheaper to run than an upright of the same size. The energy label matters more than the type, though.
When you open an upright door, the cold air spills out at floor level and warm air moves in. Lift a chest lid and most of the cold air stays in the box, because cold air sinks. Less work for the motor means less electricity.
Many uprights are frost-free, which saves you defrosting but can use a bit more power. Most chests need defrosting by hand.
Check the annual kWh figure on the energy label. It’s the easiest way to compare two freezers fairly, whatever their shape.
Which is easier to organise?
The upright wins easily. Drawers let you see what you’ve got without unpacking everything.
Drawers keep everything in sight, which is why an upright suits everyday cooking.
A chest needs a bit of planning, or the bottom layer becomes a mystery zone. These habits help:
- Use hanging baskets for the things you reach for most.
- Sort by crop in labelled boxes or crates: beans in one, soft fruit in another.
- Bag in meal-sized portions, labelled with what it is and the date.
- Keep a contents list on the lid and cross things off as you use them.
How much freezer space does a gardener need?
It depends on what you grow and how you preserve it. A plot full of beans, soft fruit and tomatoes can fill a lot of space by September.
Crates for each crop stop a chest turning into a frozen lucky dip. Late summer is when it fills fastest.
Think about your busiest weeks. Runner beans, raspberries and apples often all come at once in late summer. A chest copes better with a big autumn rush. If you also dry, store or bottle some of your crops, you’ll need less freezer space.
Not everything needs freezing. Potatoes, onions, squash and many apples keep well in a cool shed or garage. Our guide to storing garden produce explains what keeps where. When you’re overrun, our guide on using up a garden glut has more ideas.
Can a freezer go in an unheated garage?
Only if it’s rated for the temperatures your garage reaches. Every freezer has a climate class that tells you the room temperatures it’s built for.
A frosty garage is a tough spot for a freezer. Check it’s rated for the cold before you move it out there.
| Climate class | Room temperature it’s designed for |
|---|---|
| SN | 10°C to 32°C |
| N | 16°C to 32°C |
| ST | 16°C to 38°C |
| T | 16°C to 43°C |
Many UK garages drop well below 10°C in winter. If the room gets too cold, the thermostat may think the freezer is cold enough and stop running. The food inside can then start to thaw.
Some models are sold as suitable for garages and are designed to run in colder rooms. Check the lowest working temperature in the manual before you buy.
Which freezer is better in a power cut?
Both keep food frozen for a good while if you leave them shut. A chest tends to hold the cold a little longer.
A full freezer that stays closed usually keeps food frozen for about 48 hours. A half-full one warms faster, often within about a day. The freezer’s spec sheet lists its own “temperature rise time”.
Keep the lid or door shut until the power comes back. Packing gaps with bags of frozen produce, or bottles of water you’ve frozen, helps it stay cold.
Should you have both?
If you have room, plenty of keen growers end up with both. A chest in the garage or utility room holds the bulk harvest. A small upright in the kitchen holds what you use each week.
A chest for the harvest and a small upright for weekly food is a handy pairing if you have the room.
Pick a chest if you freeze big autumn batches, have garage or utility space, and want the most room for your money.
Pick an upright if you use the freezer daily, have little floor space, or find bending into a chest awkward.
Looking after your freezer
A little upkeep keeps any freezer running well.
- Defrost manual models once ice builds up to a few millimetres. Pack the food into cool boxes while you do it.
- Dust the back. If yours has coils at the back, a quick clean helps it run well.
- Check the seal. Close the lid or door on a sheet of paper. If it slides out easily, the seal may need replacing.
- Leave space for air around the sides and back, as the manual says.
Packing produce so you can find it
Good bagging makes either freezer far easier to use. Freeze in flat, labelled bags of a size you’ll use in one go. Flat bags freeze fast, stack neatly and thaw quickly.
Write the crop and date on every bag before it goes in. Future you will be very grateful in February.
Blanch most vegetables before freezing to keep their colour and flavour. Our guide to freezing vegetables gives the blanching times. For berries and other fruit, open-freeze on a tray first so they don’t clump, as our guide to freezing fruit explains. For herbs, try freezing them chopped in ice cube trays, as our guide to freezing fresh herbs shows.
Common freezer mistakes gardeners make
Buying on price alone. A cheap freezer with a poor energy rating can cost more over its life. Check the annual kWh.
Putting a standard freezer in a cold garage. Check the climate class first, or food may thaw in winter.
Throwing bags in loose. In a chest, loose bags sink and get forgotten. Use baskets, boxes and a contents list.
Freezing too much of one crop. Freeze what you’ll actually eat, and store or share the rest.
Leaving it half empty. An almost empty freezer warms faster in a power cut. Fill gaps with frozen bottles of water.
You’ll find more harvest and storage guides in our how-to section. Now you’ve chosen your freezer, read our guide to preserving fruit and vegetables for other ways to keep your harvest.
Frequently asked questions
Is a chest freezer cheaper to run than an upright?
Usually a little, size for size. Cold air sinks, so less escapes when you lift a lid than when you open a door. The energy rating and size matter more, so compare the annual kWh on the energy label.
How much space do I need for a chest freezer?
Allow for its footprint plus room for air and for the lid to open. A medium chest is roughly 1m long and 60-70cm deep. Check the manual for the gaps needed at the back and sides.
Can you put a freezer in an unheated garage?
Only if it’s rated for the temperatures your garage reaches. Many standard models are designed for rooms above about 10°C or 16°C. In a colder garage the compressor may stop and food can start to thaw. Look for a model sold as suitable for garages and check its lowest working temperature.
How long does a freezer keep food frozen in a power cut?
A full freezer kept shut stays frozen for about 48 hours. A half-full one warms faster, often within about a day. Keep the lid or door closed until the power is back.
Which freezer is easier to organise?
An upright, because drawers keep everything visible. A chest needs baskets or labelled boxes to stop bags getting buried. A simple contents list on the lid helps a lot.
How long do chest and upright freezers last?
Most last well over a decade with reasonable care. Build quality, where it stands and upkeep matter more than the type. Keep the seals clean, defrost manual models and leave room for air at the back.
Our team produces practical UK gardening guidance from source research, contributor records and established horticultural practice. Editorial standards are overseen by Matt W.
