10 Best Lab Kjeldahl Flasks 2025

As experts in the field of lab equipment, we've combed through countless options to bring you the top 10 lab Kjeldahl flasks on the market today. After reviewing and scoring many products in this category, we found items ranging from a respectable 7.3 score up to an impressive 9.9. The clear standout among them all is the Kjeldahl Flask from Eisco Labs. With its 500mL capacity, long neck, and round bottom, this borosilicate glass flask is the perfect addition to any lab. Trust us when we say, it's no surprise that this flask has earned the top spot on our list. Keep reading to discover what makes it so exceptional and why we recommend it above all others.