What are Yeast Envelopes and Cakes?
Sunday, November 30th, 2008
Every so often I see recipe that contains yeast (such as the great Curry Focus Naan Bread recipe). And quite often, the recipe calls for fresh yeast.
But, nowadays, fresh yeast is often hard to find. It’s probably because few people use it and it goes stale so quickly. I talked to the owner of my local Indian supply store and he said that it was rare for fresh yeast to be in the shop and, when he received a supply, the fresh yeast was quickly bought up. He figured that the news of a fresh yeast delivery quickly spread around the neighborhood and that’s why his store was cleared of the fresh yeast within hours.
I tried to find fresh yeast for days so I could try the Naan Bread recipe but couldn’t find any for sale anywhere.
I did notice that stores and supermarkets had jars of dry yeast and so I searched the internet to try and find out how much dry yeast was the equivalent to fresh yeast.
I very quickly joined a world of strange terminology and confusing numbers.
I eventually found out the answer and here are the results for you.
There are several types of yeast but I’m only going to describe dry active yeast (the type that you buy in jars) and fresh yeast (which I still haven’t even seen yet, and probably never will).
The active dry yeast used to be sold in envelopes, or packages (a package is the same as an envelope), but more recently it is sold in 4oz plastic, or glass, jars.
And fresh yeast is sold in cakes.
So how much dry active yeast is in an envelope, how much fresh yeast is in a cake and how much do you need to substitute one for another?
Well, an envelope of dry active yeast weighs 1/4 oz.
And a cake of fresh yeast can either weigh 2/3 oz or 2 oz.
If you are fortunate to find fresh yeast, you can cut off a measure from the cake but how can you measure dry active yeast?
Luckily, you can use a teaspoon to measure dry active yeast.
This part of the article is where a bit of math starts to hurt your brain.
2 1/2 teaspoons of dry active yeast weighs 1/4 oz.
An envelope of dry active yeast has the same effect as a 2/3 oz cake of fresh yeast.
You can see a dry active yeast to fresh yeast quantity equivalents table here.
One good thing about dry yeast is how long you can keep it (in its jar) before it goes stale. Fresh yeast goes stale after only a few days whereas dry active yeast can be kept for around 4 months (even longer if the jar is kept in the fridge).
I found most of the above details on yahoo answers. If you want to read about all of the different types of yeast, you can check out this great article.
So now you know a little about yeast cakes or envelopes.