When/why would you want air to come in?

I only open the vents if the bread is still warm when I put it in. I think the bread keeper would be better without this feature as I seldom use it. The knob that turns this vent does not lock and so it tends to move on its own whenever you handle the bread keeper. It seems to be open when I don't want it opened a lot.

Does anyone have trouble with the top warping and not sealing properly

After 4 years of use this crisper is the best I have ever had. Yes mine did warp when I placed it in the dishwasher. Had to work to get it on. But after awhile it became easier. The top lid now shows signs of cracking. Ordered a new criper lids comes on and off much easier. The lids won't be going in the dishwasher.

It's about 12" long, 7" wide and 6" high. It's the perfect size for green leaf, red leaf or Romaine lettuce. I really like mine

Since it does not fit in refrigerator crisper, is it not too cold for lettuce on an upper shelf? That is my experience in bags. I buy already-washed.

As I make at least 2 very large (with a protein and various veggies) for dinners every week I always keep lots of lettuce in the fridge. I’ve never had a problem with the lettuce getting cold damaged and I keep my fridge at 42 degrees. Before I got this, using the crisper drawer, I always had some lettuce that had to be thrown out. Not anymore!!!

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Progressive Prep Solutions Flour Keeper with Built in Leveler, 3.8 Quart Capacity 4.7 Quarts Green LKS-06

Product ID: 253297752

Details

Brand
Progressive
Capacity
4.7 Quarts
Colour
Green
Material
Plastic
Material features
Dishwasher

🌿Adjustable Air Vent & Water Reservoir

📏4.7 Quart Capacity

♻️Dishwasher Safe & BPA Free

Description

🌟 Keep it fresh, keep it smart — your kitchen’s new MVP!

PREP LIKE A PRO - Built-in leveler and included divider streamline meal prep and organized storage in one sleek container.
FRESHNESS ON LOCK - Adjustable air vent and water reservoir create the perfect environment to keep produce crisp and fresh longer.
TRUSTED INNOVATION - Backed by 40+ years of kitchen expertise, this container is engineered for everyday convenience and durability.
EFFORTLESS CLEAN UP - Dishwasher safe design means no hassle after busy cooking sessions—just rinse, load, and relax.
STYLISH MEETS FUNCTIONAL - Modern green oval design fits seamlessly into any kitchen aesthetic while delivering solid performance.

The Progressive Prep Solutions Flour Keeper offers a 4.7-quart BPA-free, dishwasher-safe container with an adjustable air vent and water reservoir to extend produce freshness. Featuring a built-in leveler and divider for efficient meal prep, its stylish green oval design combines practicality with over 40 years of trusted kitchen innovation.

Specifications

ASIN	B000OUY2QO
Best Sellers Rank	#285,265 in Kitchen ( See Top 100 in Kitchen ) #4,295 in Container Sets
Brand Name	Progressive
Capacity	4.7 Quarts
Closure Type	Snap
Color	Green
Container Shape	Round
Customer Reviews	4.4 4.4 out of 5 stars (8,266)
Global Trade Identification Number	00078915025197, 00885484701625
Is the item dishwasher safe?	Yes
Is the item microwaveable?	No
Item Dimensions L x W x H	31.8L x 19.1W x 15.9H centimeters
Item Form	Oval
Item Type Name	Prep Solutions by Progressive Lettuce Keeper
Item Volume	150.4 Fluid Ounces
Item Weight	0.97 Pounds
Manufacturer	Progressive International
Material Features	Dishwasher Safe, Food Grade
Material Type	Plastic
Material Type Free	BPA Free
Other Special Features of the Product	Dishwasher Safe
Package Quantity	1
Product Care Instructions	Dishwasher Safe
Recommended Uses For Product	Fruit, Vegetable
Size	4.7 Quarts
UPC	885484701625 723979101645 078915025197 885158243635 732233498476 885293035003 781147646732 716080056607 885376656972 887653005824 802751186640 711717434315 789150025193 692264408182 885168212782 702331154031 885890896533 885428108091 797267522702 885462235449 885610040369 885528620875 719918444430 719707922330 793842500035 702785958759
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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