are these compatible with calma nipple?

According to the description they are, but I did not try a calma nipple myself.

What parts do I need to use with this bottles? A collar and a nipple?

Yes, if you wanted to use these bottles for more than just collection and storage you will need the collar and nipple. We have used the medela collar/nipple and also the regular Dr. Browns collar/nipples fit.

how many hours does it take to thaw frozen breastmilk in the refrigerator using these medela bottles?

It typically takes us about 8 hours to defrostin a refrigerator but you can also run these under cold water. Never defrost under hot water because it creates improper heat distribution. You can spoil the milk in direct contact while the core is still frozen.

does it come with the box? any sterilizer bags as the bonus?

Yes, the six bottles are in a box. And in the box there is an extra plastic bag, the bottles can be put into it, then you can sterilize them in the microwave oven. It seems can be used for twenty times.

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Medela Breast Milk Collection and Storage Bottles with Solid Lids - 6pk/5oz-150mL Breastmilk Container, Compatible Breast Pumps and Made Without BPA

Medela Breast Milk Collection and Storage Bottles with Solid Lids - 6pk/5oz-150mL Breastmilk Container, Compatible Breast Pumps and Made Without BPA

Product ID: 735488668

Details

Bottle Type
5 oz Wide
Brand
Medela
Capacity
147.87
Color
Yellow Cap
Material
Plastic

🍼5 oz / 150 mL capacity

🔒Leak-proof screw-on lids

🧼Dishwasher & Quick Clean Micro-Steam safe

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KSh7617

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Sold byAmazon KenyaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🍼 Pump. Store. Thrive. The ultimate milk storage solution for the modern mom.

SAFE BPA FREE - Crafted without harmful BPA for peace of mind on every feed and storage.
SEAMLESS PUMP TO STORAGE - Pump directly into bottles compatible with all Medela pumps—no extra cleanup, no hassle.
LEAK PROOF TRAVEL READY - Secure screw-on lids prevent spills, making storage, freezing, and travel worry-free.
CRYSTAL CLEAR VOLUME MARKERS - Easily track milk with vibrant ounce and milliliter measurements for precise feeding.
EFFORTLESS CLEANING SANITIZING - Dishwasher safe and compatible with Quick Clean Micro-Steam bags for modern busy moms.

Medela Milk Collection and Storage Bottles offer a 5 oz (150 mL) capacity with wide-mouth design, compatible with all Medela pumps. Made BPA-free for safety, these bottles feature clear volume markings, leak-proof screw-on lids, and are dishwasher and Quick Clean Micro-Steam bag safe for effortless cleaning. Perfect for pumping, storing, freezing, and travel, they simplify breastfeeding with trusted durability and convenience.

Specifications

ASIN	B00DB5F114
Age Range Description	Infant
Best Sellers Rank	#569 in Baby ( See Top 100 in Baby ) #15 in Baby Bottles
Bottle Nipple Type	Orthodontic
Bottle Type	5 oz, Wide Mouth, Reusable
Brand	Medela
Capacity	147.87 Milliliters
Color	Yellow Cap
Customer Reviews	4.8 out of 5 stars 15,125 Reviews
Dish Washer Safe	Yes
Global Trade Identification Number	00020451870953
Included Components	(6) 5 oz/150 mL bottles, (6) solid lids, (1) Quick Clean Micro-Steam Bag
Is the item microwaveable?	Yes
Item Type Name	Breastmilk Storage
Item Weight	222 Grams
Liquid Flow Speed	Medium
Manufacturer	Medela
Material Type Free	BPA Free
Number of Items	6
UPC	020451870953
Unit Count	6.0 Count

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