How many ounces does this hold?

It doesn't say on it, so I measured it. It holds 16 oz.

is it 500ml or 550ml?

According to Zojirushi's website, it's 0.5L (500 mL) http://www.zojirushi.com/products/sweae

So what's the deal with this "lid set?" I can't figure out what function it accomplishes...

Its a check valve that allows air into the container when the contents cool. It apparently solves a problem I never had with a vacuum bottle, that leaving it to cool would make it difficult to remove the screw-top lid. Despite the overkill in complexity, it's still a great container, and keeps soup and stews hot for hours. I'm really happy with the purchase. I bought the 500 ml model, but in retrospect, for taking soup to work, the 375 ml would have been the better choice.

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Zojirushi Steel Food Jar, Medium, Black/Stainless

Product ID: 2230049

Details

Brand
Zojirushi
Capacity
17 fluid
Color
Material
Stainless
Material Feature
Stainless

⏳Keeps food hot/cold for hours

🍲2.5-inch wide opening for easy eating

🔒Leak-proof airtight seal

774 DH

Duties & taxes included

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Description

🔥 Keep your lunch legendary, wherever you go!

EFFORTLESS ACCESS - Dimples on the lid and vent release make opening a breeze, even with hot contents.
CLEAN CONVENIENT - Wide 2.5-inch mouth lets you fill, clean, and eat directly from the jar—minimal fuss.
COMPACT POWERHOUSE - Sleek, space-saving design maximizes capacity without crowding your bag or desk.
TRUSTED CRAFTSMANSHIP - Made in a top-tier Zojirushi factory with premium 18/8 stainless steel—durability meets style.
ULTIMATE TEMPERATURE LOCK - Vacuum insulation preserves your meal’s perfect temp for hours—no compromises.

The Zojirushi Steel Food Jar is a premium 17 oz vacuum insulated container crafted from durable 18/8 stainless steel. Designed to keep foods hot or cold for hours, it features a leak-proof airtight lid with a pressure-release vent and a wide 2.5-inch opening for easy filling, cleaning, and eating. Compact yet spacious, this jar combines Japanese precision manufacturing with practical design, making it the go-to choice for professionals who demand quality and convenience on the move.

Specifications

ASIN	B003DZ0HAC
Best Sellers Rank	#446,709 in Home & Kitchen ( See Top 100 in Home & Kitchen )
Brand Name	Zojirushi
Capacity	17 fluid ounces
Closure Type	Snap
Color	Black/Stainless
Container Shape	Round
Customer Reviews	4.6 4.6 out of 5 stars (807)
Food Storage Container Airtightness	Airtight
Global Trade Identification Number	04974305706997
Included Components	Lid, Stainless Steel Food Jar
Item Dimensions L x W x H	3.63"L x 3.62"W x 6.13"H
Item Form	Jar
Item Type Name	Stainless Steel Food Jar
Item Volume	17 fluid ounces
Item Weight	0.27 g
Manufacturer	Zojirushi
Manufacturer Warranty Description	5 Year Warranty on Thermal Insulation
Material Features	Stainless Steel
Material Type	Stainless Steel
Material Type Free	BPA Free
Other Special Features of the Product	Leak Proof
Package Quantity	1
Product Care Instructions	Hand Wash Only
Recommended Uses For Product	Hot and Cold Foods
Size	1 Count (Pack of 1)
UPC	791769423598 885462985856 882576267397 787543826624 885129330258
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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774 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Morocco.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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