Irenare 8 Pieces Media Storage Bottles Borosilicate Storage Glass Scientific Round Graduated Media Bottle with Blue Gl45 Screw Cap for Lab Water Reagent Liquids(1000 ml)

great even for storage of rapidly evaporating liquids. Wish they had 100 ml size that were as vapor tight

Haven't dropped them or anything, but they seem sturdy. Caps fit nicely. I uses them for short-term storage of boiling raw ginger tea and batch raw boiling coconut water from the coconuts. Not exactly like canning, but I put the cap on loose, let cool some, tighten and put in fridge. I dunk the bottles and caps in boiling water right before. So far have had success with cold storage of a few weeks.

Love the size, the markings, the lids. Packaging inadequate. Bought 16, one broke. Outer box too thin.

I have worked in biotech labs for more than 20 years and these are basically identical to the media bottles we use. I haven't autoclaved these, so I can't say for sure how the caps hold up to heat. I'm using these to hold remineralized distilled water for coffee brewing. They arrived unbroken and the packaging appeared adequate. 5 stars!

Definitely what you would expect to find in a product suited for a lab. I am extremely pleased with this.

great bottles, all delivered well (Great Packaging ) a bit frumpy on the bottom form molding inside ( not an issue for quality ) however the one surprising thing was the lip rings all warped first time in pressure cooker (10psi: 30 Minutes) soooo ... not good on the pour ring quality?. weird its not at least PP . ( I then purchased silicone rings for the GL45 Lids to assure seal)

Thick glass.Leak proof.Nice media storage.Great value.I will buy again.

Every single one of these has a broken seal. If you flip mine over they all leak, the plastic band does not go all the way around. Do not buy these if you want them to be air or water tight. They are not!