A1 Medium, CRITERION™ Dehydrated Culture Media

CRITERION™ Dehydrated Culture Media is formulated to meet or exceed the highest standards

Hardy Diagnostics CRITERION™ A-1 Medium is recommended for the detection of fecal coliforms in foods, treated wastewater, and seawater..This dehydrated culture medium is a raw material intended to be used in the making of prepared media products, which will require further processing, additional ingredients, or supplements.
Features and Benefits:

Wide mouth opening Reduces dust formation by allowing the easy entry of a scoop
Stackable containers For efficient storage
Increased solubility Dissolves quickly
Custom and bulk products Available to your specifications
Competitive pricing Call for a price quote for large volume purchases!
Complete technical/instruction sheets Available in HUGO software
Unparalleled performance Tested for optimal growth


Container sizes include:
2L mylar® bag – pre-measured for a 2 liter batch, no weighing needed!
500gm bottle - wide mouth, easy grip bottle, comes with a free scoop!
2kg and 10kg bucket - with convenient screw lid!

Also see our selection of petri plates, glass screw-cap tubes, animal blood, media supplements and antibiotics.

Please contact us at for specific academic pricing.