Breast milk storage trays let you freeze milk in pre-measured portions that thaw quickly and stack neatly in the freezer. Compared to bags, trays reduce plastic waste and make it easy to grab exactly the amount you need for a feeding. The best trays seal tightly to prevent freezer burn, use food-grade silicone, and release frozen portions without fighting with stiff plastic. Here are the best options for 2026.
Quick Comparison
| Tray | Best For | Portions | Portion Size | Material | Price |
|---|---|---|---|---|---|
| Souper Cubes Half-Cup | Overall pick | 6 | 4 oz | Silicone | $17 |
| Milkies Milk Trays | Breast milk specific | 8 | 1 oz sticks | BPA-free plastic | $20 |
| Haakaa Silicone Tray | Best value | 6 | 4 oz | Silicone | $13 |
| Boon Jewel | Small portions | 12 | 1 oz | Silicone | $10 |
| W and P Porter Freezer Tray | Premium | 6 | 4 oz | Silicone | $22 |
| Kiddo Feedo Baby Tray | Versatile | 9 | 2.5 oz | Silicone | $14 |
| Nuby Garden Fresh Tray | Budget | 6 | 2 oz | Silicone + lid | $8 |
| WEESPROUT Silicone Tray | Large capacity | 10 | 3 oz | Silicone | $15 |
| OXO Tot Baby Blocks | Snap-and-go | 6 | 4 oz | Plastic + silicone | $18 |
1. Souper Cubes Half-Cup Tray - Best Overall
Souper Cubes were designed for freezing soups and sauces, but the half-cup (4 oz) size is perfect for breast milk portions. The thick silicone walls keep their shape in the freezer, and the snap-on lid creates an airtight seal that prevents freezer burn and odor absorption. Each cube pops out cleanly with a gentle push from the bottom.
The 4 oz size matches a standard feeding amount for most infants between two and six months. You can freeze a full pumping session across one or two trays and know exactly how much each cube contains. The trays stack flat, which matters when freezer space is at a premium.
Made from 100% food-grade platinum silicone with no fillers. Dishwasher safe and rated for temperatures from -40F to 415F. At $17, the durability justifies the price since you will reuse these for years.
2. Milkies Milk Trays - Best Purpose-Built
Milkies Milk Trays are designed exclusively for breast milk and it shows. The tray freezes milk into slim, cylindrical sticks that fit directly into the mouth of any standard baby bottle. This means faster thawing since the stick shape has more surface area than a cube. You can drop a frozen stick into a bottle of warm water and it melts in minutes.
Each tray holds eight 1 oz sticks, so you can combine sticks to make any feeding size. The snap-tight lid keeps milk sealed during freezing. At $20 for a two-pack, the per-unit cost is reasonable given the breast-milk-specific design.
3. Haakaa Silicone Tray - Best Value
Haakaa is a trusted name in breastfeeding products, and their silicone freezer tray brings that reputation to milk storage. Six 4 oz compartments with a clip-on lid at just $13 makes this the best value option. The silicone is soft enough to flex for easy release but firm enough to carry when full without folding.
4-9. More Options
Boon Jewel ($10): Twelve 1 oz cubes are ideal for adding small amounts of breast milk to purees or cereal when starting solids. Affordable and well-made.
W and P Porter ($22): Premium silicone with a beautiful design. Functionally similar to Souper Cubes but with slightly softer silicone. Worth it if aesthetics matter to you.
Kiddo Feedo ($14): Nine 2.5 oz portions hit a sweet spot between 1 oz and 4 oz options. Good for younger babies who take smaller feeds.
Nuby Garden Fresh ($8): The most affordable option with a snap-on lid. Six 2 oz cubes. Good starter tray if you want to try freezing breast milk before investing more.
WEESPROUT ($15): Ten 3 oz portions with a clear lid so you can see what is inside without opening.
OXO Tot Baby Blocks ($18): Individual snap-on containers that sit in a tray. Each container seals independently, so you can grab one without exposing the others to air.
Tips for Freezing Breast Milk
Cool before freezing. Let freshly pumped milk cool in the refrigerator for an hour before pouring into trays.
Label with dates. Frozen breast milk is good for 6 to 12 months in a deep freezer and 3 to 6 months in a standard freezer.
Do not overfill. Milk expands when frozen. Fill each compartment to about 80% capacity.