Do the markings stand up to washing, or do they disappear over time?

Have washed mine many times on the top rack of the dishwasher and they are as dark now as when I first purchased them. My favorite go to measuring cups!

I recently purchased a set of these measuring cups. I see they can stand up to 450*F. This may be a dumb question, has anyone microwaved these ?

I use mine in the microwave every day: heating milk for mashed potatoes; warming water to proof yeast for bread-making; making cocoa. Love these cups!

Do these have markings for ounces? It doesn't look like it from the picture. Thanks!

Yes, one side is marked by ounces (2oz increments) and cups (1/4c increments). The other side is liters (1/4L increments) and mL (50mL increments).

Over time do the markings start to wear off?

I've used my flex-it cup for a year or so and the markings have not shown any sign of wearing off. I always clean it by hand, though. I don't know what would happen if I used my dishwasher.

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🍳 Measure Like a Pro, Pour Like a Boss!

GRIP RELEASE MASTERY - Textured exterior for a non-slip hold, smooth interior ensures ingredients slide out effortlessly.
ODOR STAIN RESISTANT - Silicone won’t absorb smells or colors, keeping your kitchen tools fresh and clean.
PRECISION IN EVERY POUR - Easy-to-read increments in cups, ounces, and milliliters for flawless measurements every time.
FLEXIBLE SILICONE DESIGN - Bend and pour with zero spills—perfect for batters and liquids alike.
BUILT FOR HEAT CONVENIENCE - Withstands up to 500°F, microwave and dishwasher safe—durability meets ease.

The iSi Basics Silicone Flexible Measuring Cups set includes three versatile sizes (1, 2, and 4 cups) crafted from heat-resistant, odor-free silicone. Designed with clear US and metric markings, flexible pour spouts, and a textured grip, these dishwasher and microwave-safe cups combine precision, durability, and effortless handling for the modern kitchen.

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Colour	As shown in the image
Material	As shown in the image
Capacity	907 g
Brand	iSi
Item dimensions L x W x H	12.1 x 12.1 x 17.1 Centimeters
Item Weight	0.14 Kilograms
Global Trade Identification Number	00085355253004
Manufacturer	iSi North America
Size	As shown in the image
UPC	885205395515 885223259011 885340733562 885202131628 789542148363 885286508149 085355253004
Country of Origin	USA
Item model number	B25300
ASIN	B001CDBBY8

iSi Basics Silicone Flexible Measuring Cups, Set of 3 -1, 2 and 4 Cup Capacity

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