Nutri-fly® Key Features


Save Time & Effort

Never hassle with weighing out multiple ingredients or managing inventory. Simply weigh out the Nutri-fly powder and add water to cook for easy, simple, and quick media preparation.


Adopted Worldwide

Nutri-fly is used as the main food for fly cultures by several major Drosophila media prep facilities worldwide, both large and small. Researchers and kitchens alike benefit from Nutri-fly.


2 Year Shelf Life

Nutri-fly has a robust 2 year shelf life when stored properly, so you can stock your kitchen with confidence for an extended period of time without having to worry about expiration dates.


Not More Expensive

Refreshingly, Nutri-fly is not more expensive than sourcing ingredients separately, especially considering excess ingredient waste in the form of overages and time spent on managing inventory for multiple ingredients.



Nutri-fly is available in both single-use packets and Superbulk® “best value” bulk format to suit any requirements. Nutri-fly is also available in the several formulations to meet the needs of any Drosophila kitchen or lab.


Always Consistent

Each batch of Nutri-fly is tested for consistency using our proprietary food testing procedures. Each of these tests guarantee consistent and high quality food every single time and the correct ingredient composition.

Nutri-fly® Formulations

Bloomington Formulation

The same exact recipe and ingredient composition that is used by the Bloomington Drosophila Stock Center. For consistency, most ingredients come from the manufacturers stated on the Stock Center’s website here.

– Yellow Cornmeal
– Corn Syrup Solids
– Inactive Nutritional Yeast
– Drosophila Agar, Gelidium
– Soy Flour

Molasses Formulation

The Nutri-fly® Molasses Formulation is based off of the Bloomington Stock Center’s Cornmeal, Molasses and Yeast Medium Recipe here.

– Yellow Cornmeal
– Molasses Solids
– Inactive Nutritional Yeast
– Drosophila Agar, Gelidium

German Formulation

This high-nutrient recipe is ideal for weak Drosophila strains. It is based on the Bloomington Stock Center Semi-Defined Medium recipe here.

– Brewer’s Yeast
– Yeast Extract
– Drosophila Agar, Gelidium
– Peptone
– Sucrose
– Dextrose
– MgSO4 x 6H2O
– CaCl2 x 2H2O

Instant Formulation

The Nutri-fly® Instant Formulation allows for easy setup of new cultures as no cooking is required. Compare this to the Carolina Instant Drosophila Medium.

– Potato Flakes
– Dextrose
– Brewer’s Yeast
– Tegosept


Nutri-Fly® Grape Agar Powder Premix Packets

Our Nutri-fly Grape Agar Premix Powder contains all necessary ingredients to make your Drosophila embryo collection plates. Make perfect plates, every time!

Ingredients: Concord Grape Crystals, Sucrose, Agar, Tegosept


Extremely Convenient

Never go grape juice shopping again! Convenience is unmatched with every ingredient included in one single packet


We rigorously test multiple batches from every single lot to ensure your plates come out perfect each and every time

High Quality Ingredients

We use high quality extract from concord grapes and top grade agar to ensure your flies lay the most egg beds

Quick & Simple

Grape agar packets are super easy and quick to make. Simply add water and make in the microwave, autoclave or on a hot plate

Nutri-Fly® Drosophila Agar

Our technical grade Drosophila agar (USP) is a staple ingredient in fly food. 100 mesh particle size. Lot-to-lot quality control processes assure consistency in your fly food

Gel Strength Coefficient

Agar gel strength can vary from lot to lot. Since the gel strength is noted on the label of all Nutri-Fly Drosophila agar, we strongly suggest that Drosophila media facilities seize the opportunity to use this information to ensure consistency in gelification of fly food. To do so, one must first “normalize” the food by noting the gel strength of an ideal batch. Then, use the following formula to account for varying gel strength to calculate the exact amount of agar you want to use in subsequent preparation:


Individual Fly Food Ingredients


Apple Cider Vinegar

Many Drosophila labs regard Apple Cider Vinegar as the best attractant for flytraps. This vinegar is distilled from grain with natural apple flavoring.


Corn Syrup Solids

Corn syrup solid is an ideal substitute for liquid corn syrup. Compare to Karo used in Indiana University, Bloomington Drospohila Stock Center medium.



Our yellow corn meal has
been tested and approved by
several reputable Drosophila
laboratories and
ensures consistency.



Dextrose monohydrate
is a nutritive sweetner
ideal for Drosophila media.
Dextrose is produced
from corn starch.


Malt Extract

Our malt extracts enhance the sweetness of your media and are subject to stringent quality control procedures to ensure high quality product.



Liquid molasses is a brown natural molasses blended with the flavor and aroma of fine imported unsulphured molasses. Available in 1 and 5 gallon units.


Molasses, Dry

Powder Molasses contains nothing artificial, and is ideal for use in liquid and dry conventional food applications. Suggested Use: 90 grams per 1 liter batch.



Dextrose monohydrate is a nutritive sweetner ideal for Drosophila media. Dextrose is produced from corn starch and is available as a crystalline powder.


Soy Flour

Our Soy Flour is an all natural,
high-quality, cholesterol-free
soy protein ingredient
that contains virtually
every essential amino acid.


Sucrose, Granulated

This food grade sucrose is white in color and has a sucrose content of not less than 99.85%. This is a granulated sugar ideal for Drosophila Media.



Apex Tegosept is widely used
as a fly food preservative.
Odorless and non-toxic, Tegosept
acts against a broad spectrum
of microorganisms.



We offer both Inactive
Dry Yeast and Active
Dry yeast. These high-quality
yeasts suit any Drosophila media
kitchen’s needs.

Droso-Filler™ Fly Food Dispenser

The Droso-Filler media dispenser is available exclusively through Genesee Scientific. Simply fill the trough with your Drosophila media of choice and pour tray after tray as quickly as possible! Made from food-grade stainless steel with a Teflon sliding plate.

Droso-Filler is a trademark of FlyTabs Inc


Saves Time

Fill a full tray of 100 vials or a full tray of 25 bottles all at once! Never fill up an individual vessel by hand again

5 Year Warranty

Backed by a 5 year warranty
and a 90 day full refund
return policy so your satisfaction
is guaranteed

3 Size Options

Available in 3 sizes to fill either a full tray of 100 narrow vials, 100 wide vials, or 25 square bottom bottles at a time

Upgrade Your Old Filler

We sell replacement O-rings, springs and Teflon slider plates. Replace those parts and your filler is like new again!