Fleischmann vs SAF Instant Yeast

Here is a comparison of Fleischmann and SAF Instant yeast side-by-side.

Fleischmann is on the left, SAF is on the right.

Picture was taken 15 minutes after yeast was added.

Equal amounts of water, sugar (1 tsp), temperature (125F) and yeast (1 tsp).

A couple things to note:

Smell: SAF smelled like a full bodied beer. Fleischmann smelled like light, almost chemical, beer.

Integrity: SAF seemed to collapse a few times, while Fleischmann never collapsed during the observed 15 minutes.