Can You Put Measuring Cups in the Dishwasher?

Yes, many measuring cups are dishwasher safe, but it depends on the material and construction. Glass and most stainless steel cups can go on the top rack, while plastic cups, especially those with printed markings, often warp or fade in the dishwasher.

Quick Answer

Quick Answer: Dishwasher safety varies by material. Glass and stainless steel are generally safe on the top rack; plastic cups often warp or lose markings; silicone cups are safe but may collect water.

Glass: Borosilicate or tempered glass cups (like Pyrex) are dishwasher safe on the top rack, but avoid rapid temperature changes.
Stainless Steel: Single-wall stainless cups are dishwasher safe; double-wall insulated ones may leak if sealed, so check manufacturer.
Plastic: Most plastic measuring cups are top-rack safe but may warp or fade over time; hand-washing preserves markings.
Silicone: Silicone cups are dishwasher safe but can trap water in crevices; dry thoroughly after wash.

Measuring Cup Materials and Dishwasher Safety

The safety of putting measuring cups in the dishwasher depends largely on the material. Here’s a breakdown:

Glass: Tempered or borosilicate glass (e.g., Pyrex) can handle dishwasher heat. Place on the top rack to avoid thermal shock from the heating element.
Stainless Steel: Single-wall stainless cups are rugged and dishwasher safe. Double-wall insulated cups may have seals that can leak if not rated; check the label.
Plastic: Most plastic cups are marked dishwasher safe, but high heat can warp them or cause printed markings to peel. Hand-washing extends their life.
Silicone: Flexible silicone cups are heat-resistant and dishwasher safe, but they can hold water in crevices—shake out excess before drying.

When to Avoid the Dishwasher

Even if a cup says dishwasher safe, certain conditions can cause damage:

Printed markings: Cups with raised or printed measurement lines may fade or peel in the dishwasher, especially with high heat or harsh detergents.
Narrow openings: Some cups have narrow necks that trap water and food particles, leading to mold or odors.
Vintage or collectible cups: Old plastic or painted cups may not withstand modern dishwasher temperatures (130°F to 170°F).
Double-wall construction: If the seal fails, moisture can get between walls, causing fogging or rust.

How to Wash Measuring Cups in the Dishwasher

Follow these steps to minimize risk:

Check the bottom: Look for a dishwasher-safe symbol or text. If unsure, hand-wash.
Place on top rack: Keep cups away from the heating element, which can cause warping or fading.
Secure loose parts: If the cup has a removable handle or lid, place them in the utensil basket.
Use a low-heat or gentle cycle: Extended high heat can damage plastic and markings over time.
Remove promptly: Don’t let cups sit in a hot, steamy dishwasher after the cycle ends—residual heat can warp thin plastic.

Hand-Washing for Delicate Cups

For measuring cups that are not dishwasher safe, or to extend their life, hand-wash with these steps:

Use warm, soapy water: A mild dish soap and a soft sponge prevent scratches and preserve markings.
Avoid abrasive scrubbers: Steel wool or scouring pads can scratch plastic and glass, making them hard to read.
Dry immediately: Moisture left on metal cups can cause spots; on plastic, it can promote mildew in crevices.
Store properly: Nest plastic cups with a cloth between them to prevent scratching.

Real-World Experiences

Many home cooks report that common plastic measuring cups from brands like OXO or KitchenAid survive the dishwasher for years, though the markings gradually fade. Glass Pyrex cups often come out spotless, but some users note that the red printed markings can wear off after many cycles. Stainless steel cups from brands like Cuisipro or RSVP Endurance hold up well, but those with rubber handles (like OXO’s angled cups) may have rubber degrade over time. Silicone cups from brands like Silpat or Tovolo are virtually indestructible in the dishwasher, but they tend to hold water in the spout—make sure to drain them upside down.

Pro Tips

Place plastic measuring cups on the top rack, away from the heating element, to reduce warping.
If you hand-wash, use a soft sponge and avoid abrasive cleaners that scratch markings.
Dry glass and metal cups immediately to prevent water spots and mineral buildup.
For silicone cups, squeeze the spout after washing to expel trapped water.

Common Mistakes to Avoid

Putting plastic cups on the bottom rack, where heat is highest, causing them to warp or melt.
Using abrasive scrubbers on printed markings, which accelerates fading.
Leaving cups in the dishwasher after the cycle ends, exposing them to residual steam and heat.
Assuming all stainless steel cups are dishwasher safe—double-wall insulated cups may leak.

FAQ

Can I put Pyrex measuring cups in the dishwasher?

Yes, Pyrex glass measuring cups are generally dishwasher safe. Place them on the top rack to avoid thermal shock from the heating element, and avoid sudden temperature changes (like rinsing a hot cup with cold water).

Will dishwasher detergent ruin measuring cup markings?

Over time, harsh detergents and high heat can fade printed or embossed markings. To preserve them, hand-wash or use a gentle cycle with mild detergent. Cups with etched markings are more durable.

How do I know if my measuring cup is dishwasher safe?

Look for a dishwasher-safe symbol (often a plate with water droplets) or text on the bottom of the cup. If there’s no marking, assume it’s not safe and hand-wash. Check the manufacturer’s website for specific guidance.

The Bottom Line

Ultimately, the decision to put measuring cups in the dishwasher comes down to material and personal preference. Glass and stainless steel are the most durable, while plastic and silicone require more care. When in doubt, hand-wash to preserve markings and extend the life of your tools.