If you are asking about the glass measuring beaker Yes they are food safe glass

How much heat can these beakers handle, please (I noticed it says heat resistant)?

I'd be afraid to put heat to them. They are not tempered...might shatter.

what is the highest temperature these can withstand?

Borosilicate glass will begin softening above 800C (~1500F). Any temperature below this should be a good operating temperature but it should be understood that at these higher temperatures that very rapid cooling or heating either one could result in the glass breaking mainly due to temperature difference within the glass. Borosilicate 3.3 is more resistant to these stresses than other types of Pyrex glass. Dennis Brunsell TN Lab Supply

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3 Pack Borosilicate Glass Beaker Set, 50 mL, 100 mL and 250 mL | Approximate Graduations, Chemical Resistance, Reusable Design, Measuring Low Form Beaker Set

Product ID: 32528418

Details

Brand
Ronyes
Capacity
250 ml
Color
Clear
Item Weight
0.55 Pounds
Material
Glass

📏Precise graduated markings

🔥High thermal resistance

🧪Borosilicate 3.3 glass durability

₩30841

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Description

🧪 Measure with confidence, perform with precision!

CHEMICAL CHAMPION - Perfect chemical resistance for reliable lab and industrial use.
THERMAL TOUGHNESS - Minimal thermal expansion ensures stability under rapid temperature changes.
PRECISION AT A GLANCE - Clear, graduated markings for quick and accurate volume readings.
TRIPLE SIZE FLEXIBILITY - Set includes 50ml, 100ml, and 250ml beakers to cover all your measuring needs.
ENGINEERED FOR EXCELLENCE - Uniform wall thickness and borosilicate 3.3 glass for unmatched durability and heat resistance.

The Graduated Glass Measuring Low Form Beaker Set by Ronyes Lifescience features three versatile sizes (50ml, 100ml, 250ml) crafted from durable borosilicate 3.3 glass. Designed for high thermal and chemical resistance with precise graduated markings, this set offers reliable performance for professional labs and industrial applications.

Specifications

ASIN	B01J57WFF6
Best Sellers Rank	#11,044 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Lab Beakers
Brand Name	Ronyes Lifescience
Capacity	250 ml
Color	Clear
Customer Reviews	4.6 4.6 out of 5 stars (5,257)
Included Components	50ml+100ml+250ml
Item Weight	0.55 Pounds
Manufacturer	Ronyes Lifescience
Manufacturer Part Number	Becherglas-3
Material Type	Glass
Model Number	69091100
Size	50ml+100ml+250ml
UPC	606462651271 606860013381
Unit Count	1.0 Count

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₩30841

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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