Laboratory grade borosilicate glass can be rapidly heated or cooled without cracking. This guy is great for collecting hydrometer or refractometer samples, weighing hop additions, or mixing water treatments.
These are so great I bought 3! Used for a variety of tasks: taking gravity readings from brew kettle and fermenters, taking pH readings during mash, measuring for blending.
I was skeptical at first due to the small size but I actually use this thing quite a bit. Everything from rehydrating dry yeast, cooling wort for SG readings, sampling wort, starch conversion, or even just to freak my neighbors out by drinking beer out of. Grab up a couple while you're at it and take your brewing nerdiness to the next level.
Great for checking pH, storing pH probes, masch conversion & specific gravity
A have a number of these 150mL beakers. I use one for the pH meter to store the probes, another I use for checking the mash conversion, and even for wort samples.
Great for checking the pH of the beer from the connical as it small enough to get a sample that shows the progress of the fermentation.
it's great for small measurements and it's accurate. little beakers like this come in handy for all sorts of things, and borosilicate glass means you don;t have to worry about it stressing under heat.