An onion keeper solves two different problems. Cut onions need a small lidded container that keeps the smell in the fridge, while whole onions need a dark, airy spot in the pantry. Pick the type first, then the size.
The six keepers below cover both jobs: two fridge savers for cut onions, three bins for whole onions and one fabric bag. Sizes, materials and care notes come from each product’s listing page. We have not used these products ourselves. Storage-time claims are the makers’ own.
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What to Look For
| Feature | Why it matters |
|---|---|
| Type | Cut onions need a lid; whole onions need airflow |
| Size | Match the container to one onion or a full bag |
| Material | Plastic, bamboo, steel and canvas clean differently |
| Cleaning | Check which parts go in the dishwasher |
Specs at a Glance
| Keeper | Size or capacity | Material | Notes |
|---|---|---|---|
| Hutzler Onion Saver | 5 x 5 x 4.75 in | Plastic | Fridge saver for cut onions; dishwasher safe |
| ProKeeper Onion Keeper | 1.5 cups | Plastic with a stainless steel lid | Jar shape for chopped or halved onions; dishwasher safe |
| OXO Produce Saver | 5 lb | Bamboo lid, opaque bin | Elevated inner basket; stackable; lid is hand wash only |
| Lifewit set of 3 | About 4.5 kg potatoes, 2 kg onions, 20 garlic heads (maker’s figures) | Food-grade PP plastic with bamboo lids | Side vents; stackable and nesting |
| Xbopetda steel bin | 7.08 x 5.9 x 9.05 in | Stainless steel, powder-coated per the maker | Ventilation holes; hand wash only |
| TOGETRUE bag, 2 pack | 11.4 x 16 in; about 8 lb | Canvas with a blackout lining | Drawstring and a side zipper; washable |
The 6 Best Onion Keepers
1. Hutzler Classic Onion Saver, Yellow
A reusable plastic onion shape, 5 by 5 by 4.75 inches, made to hold a cut onion in the fridge. The listing says it traps onion odors, is BPA free and dishwasher safe, and that the bright color keeps it from getting lost.
Suits: half an onion in the fridge. Strengths: an easy-to-spot shape and dishwasher cleaning. Weaknesses: holds about one onion. Skip it if you store whole onions in bulk.
View Hutzler Classic Onion Saver, Yellow on Amazon
2. ProKeeper Onion Keeper
A small jar-style plastic keeper with a stainless steel lid and a 1.5 cup capacity, listed for chopped or halved onions with an airtight seal. The listing says it is BPA free and dishwasher safe.
Suits: chopped onion in the fridge. Strengths: a compact jar and a metal lid. Weaknesses: only 1.5 cups; no outside dimensions listed. Skip it if you need to fit a whole large onion.
3. OXO Good Grips Produce Saver Root Vegetable Bin
A 5 lb bin with an opaque body, an FSC-certified bamboo lid and an elevated inner basket that the listing says improves airflow. The lid is flat for stacking and the front has an angled opening for grabbing produce without lifting it.
Suits: a pantry shelf. Strengths: stackable, with an inner basket and easy access. Weaknesses: the lid is hand wash only. Skip it if you want a cut-onion container for the fridge.
View OXO Good Grips Produce Saver – Root Vegetable Bin, 5lb Capacity on Amazon
4. Lifewit Plastic Potato and Onion Storage Bin Box, Set of 3
A three-bin set in white: one for about 4.5 kg of potatoes, one for about 2 kg of onions and one for about 20 heads of garlic, per the maker. The bins have side vents and bamboo lids, stack flat and nest when empty.
Suits: a whole pantry set. Strengths: three sizes that stack and nest. Weaknesses: the lid is hand wash only. Skip it if you only need one container.
View Lifewit Plastic Potato and Onion Storage Bin Box, Set of 3, White on Amazon
5. Xbopetda Onion Storage Bin, Metal Storage Tin
A white steel tin, 7.08 by 5.9 by 9.05 inches, with ventilation holes, a matching lid and two handles. The maker describes powder-coated sheet steel and says the labeled canister keeps onions out of the light.
Suits: a countertop look. Strengths: a deep tin with vents and handles. Weaknesses: hand wash only. Skip it if you want a see-through container.
6. TOGETRUE Potato Onion Storage Bag
A two-pack of canvas bags, 11.4 by 16 inches, with a blackout lining, a drawstring top and a side zipper of about 6.25 inches. Each holds about 8 pounds of produce according to the maker, and the bags can be hand washed or machine washed.
Suits: a soft bag for a cabinet or hook. Strengths: washable and light blocking. Weaknesses: not rigid, so it does not stack. Skip it if you want a hard-sided bin.
View TOGETRUE Potato Onion Storage Bag, Fabric Onion and Potatoes Storage Bag on Amazon
Care and Setup
- Keep whole onions in a cool, dry, dark spot with some airflow.
- Store cut onions in a lidded container in the fridge.
- Follow each listing for dishwasher or hand wash care.
- Keep onions away from potatoes if the container allows a choice.
Mistakes to Avoid
- Putting whole onions in a sealed container with no airflow.
- Using a small fridge saver for a large onion.
- Putting a hand-wash-only lid in the dishwasher.
- Storing a damp onion in a fabric bag.
Onion Keeper FAQ
Do whole onions go in the fridge?
The listings for the bins here describe a cool, dark pantry spot with ventilation for whole onions. The fridge savers are for cut onions.
Can I stack these?
The OXO and Lifewit listings both describe flat lids made for stacking. The fridge savers and the fabric bags are not stacking designs.
The Short Version
For a cut onion, the Hutzler. For chopped onion in a jar, the ProKeeper. For a stackable pantry bin, the OXO. For a three-bin set, the Lifewit. For a metal tin, the Xbopetda. For a washable soft bag, the TOGETRUE.
