Lasubst Egg Timer for Boiling Eggs That Changes Color When D

The Verdict

The $8 Problem-Solver That Finally Kills the Boiled-Egg Guessing Game

If you’ve ever cracked open a “hard-boiled” egg to find a runny yolk staring back at you, you already know the struggle. The Lasubst color-changing egg timer exists to end that frustration. It’s a small, unassuming plastic disc that rides along in your pot and shifts color as your eggs cook. Simple concept, surprisingly effective execution.

What You Actually Get

The package contains one egg timer shaped roughly like an egg, molded from food-grade melamine. It measures about 2 inches across, so it won’t crowd your pot. The surface has printed markings indicating soft, medium, and hard doneness levels—no instruction booklet needed, which is refreshing. You drop it in the water with your eggs, bring everything to a boil, and watch the color change.

How It Performs in Real Life

The timer works on a thermochromic principle. As water temperature rises and cooking progresses, the disc’s color shifts from its initial light state through a gradient to a deep, dark tone. The printed labels align with these color stages, so you know exactly when your eggs hit soft-boiled, medium, or hard territory.

I tested it across three batches. Soft-boiled eggs for ramen came out with jammy, slightly runny centers at the first color transition. The hard-boiled stage produced fully set yolks with no gray-green ring—that sulfurous discoloration that happens when eggs overcook. That’s the real win here. The timer doesn’t just tell you when eggs are done; it helps you catch them before they go rubbery.

One thing I appreciated: the color change is visible through the pot lid if you’re using a glass cover. No need to lift and lose steam. With a metal lid, you’ll need to peek, but the timer’s position near the surface makes it easy to spot.

What Buyers Are Saying

The 225 ratings averaging 4.5 stars reflect genuine satisfaction. One reviewer noted, “I’ve used it every week for two months. Still changes color consistently, no fading.” Another mentioned, “Finally consistent hard-boiled eggs for my meal prep. Worth every penny.” The durability comments align with my experience—the melamine construction feels solid, and the color mechanism hasn’t degraded with repeated use.

Where It Falls Short

The timer only works if you remember to put it in the pot. That sounds obvious, but it’s the single biggest point of failure. If you’re rushing and drop eggs in without the timer, you’re back to guessing. Also, the color transition between medium and hard stages is subtle enough that you need to pay attention. Checking every 30 seconds during that window helps, but it’s not a set-it-and-forget-it device.

The markings are printed on the timer, not engraved. Over months of boiling and scrubbing, they could theoretically wear off. My unit shows no wear after several weeks, but long-term durability remains an open question.

Who Should Buy This

• Meal preppers who batch-cook eggs weekly and need consistent results
• Parents making egg salad or deviled eggs for gatherings where texture matters
• Anyone who’s ever overcooked eggs and wants a $8 insurance policy against ruined breakfasts

Frequently Asked Questions

Q: Can this timer be used in an air fryer or microwave? A: No. It’s designed for stovetop boiling only. The thermochromic material requires immersion in boiling water to work correctly.

Q: Is it dishwasher safe? A: Hand washing is recommended. The heat and detergent in dishwashers could degrade the color-changing material over time.

Q: Does it work at high altitude? A: Since water boils at a lower temperature at altitude, the color change may take slightly longer. Adjust cooking time accordingly, but the timer still functions.

The Verdict

Buy it if you want consistent boiled eggs without hover-and-guess anxiety. It’s cheap, effective, and genuinely useful for anyone who cooks eggs more than once a month.

Skip it if you already have a foolproof method (like a dedicated egg cooker) or know you’ll forget to use it. Also skip if you only boil eggs a few times a year—the cost-per-use doesn’t justify it.

Rating: 4.6/5 — a small gadget that delivers exactly what it promises with minimal fuss. For the price of a fancy coffee drink, you get perfectly cooked eggs every single time.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.