Special Flasks
Thomson Optimum Growth® Special Flasks were designed with the unique needs of small- to medium-scale bioprocessing applications
Components For Closed Systems
Sampling Flasks
Optimum Growth® Sample Flasks with one-way sampling valves that help reduce viable cell count sampling times
Eliminate the need to remove flask caps & allow aseptic sampling on the benchtop
Multiport Flasks
Optimum Growth® Multiport Flasks serve as closed systems with feed/transfer ports
Feature feed/transfer ports for seeding larger bioreactors or for batch feeding medium sized cultures
Both aseptic sampling valves & feed/transfer ports making the 1.6L and 5L flasks closed systems
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Sampling Flasks
Several Options for aseptic Sampling
Optimum Growth® Flasks provide several options for aseptic sampling in all flask sizes. The 125mL, 250mL, and 500mLOptimum Growth® Flasks have an optional 1-way valve in the vented sample cap. The 5L Optimum Growth® Flask has an optional 1-way valve in the side of the flask.
The aseptic sampling option is available for the 125mL, 250mL, 500mL & 5L Optimum Growth® Flasks.
Vented Sampling Caps
The Vent Cap of the Optimum Growth® Sampling Flask incorporates a 1-way valve that only allows media to flow out of the flask. This eliminates contamination and allows for aseptic sampling of cells while the flasks remain in the shaker or on the benchtop, eliminating the need for transfer to the hood from the shaker.
Optimum Growth® Sampling Flasks come with a 0.2μm PTFE vented cap for optimum aeration during cultivation. The Thomson vented caps create a safe aseptic barrier from harmful contaminants, while the large surface area creates an optimum air exchange for cell growth.
Sampling in the Shaker
Thomson’s improved sampling method allows you to sample directly in the shaker without the need to remove caps or use a deteriorating needle septum.
- Open shaker
- Attach syringe to sampling port and withdraw the sample
- Remove syringe & close shaker
Multiport Optimum Growth®
Transfer & Feed Flasks
Born As A Custom Product...
The Multiport Optimum Growth® Flask was born out of the need for biopharmaceutical companies to ensure the elimination of contamination risk. The multiport flasks allows for completely closed system aseptic processing.
Steps Include:
- Addition of media to the flask
- Inoculation
- Feeding
- Sampling
Sized From 125mL to 5L
125mL
250mL
500mL
1.6L
5L
Why use Multiport Optimum Growth®?
Sample Port Side
Allows viable cell count sampling while the flask remains in shaker or on benchtop
No need to decontaminate and open the flask cap
Ensures contamination-free processing
Feed Side
Tube fusing for media addition, inoculation, feeding
Transfer to larger vessel maintaining sterility
Eliminates the need to inoculate using expensive and awkward cell bags
Contamination-free processing by never needing to open the flask cap
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Flask Clamp Compatibility
Use the chart below to find the appropriate flask clamp compatible with your shaker.
| Flask Size | Eppendorf® | INFORS HT® | Kuhner® | Fisher Scientific® | VWR® |
|---|---|---|---|---|---|
| 125mL | M1190-9001 | 12202 | SM310125 | 11-676-013 | 57019-676 |
| 250mL | M1190-9002 | 12203 | SM310250 | 11-676-014 | 57019-678 |
| 500mL | M1190-9003 | 12204 | SM310500 | 11-676-015 | 57019-682 |
| 1.6L | n/a | 12205 | SM311600 | n/a | n/a |
| 2.8L | ACE-2000S | 12251 | SM312800T | 11-676-018 | 57019-686 |
| 5L | ACE-5000S | 12209 | SM313000F | 236028 | 57019-696 |
Looking For Something Custom?
We’re here to help!
Thomson's R&D Department is eager to help you in finding a custom solution to your needs. Some of these even evolve into our regular line of products.
Optimum Growth® Sample Flask Part Numbers
- Optimum Growth® 125mL Flask, w/Sampling PortsterilePTFE 0.2µm Vent Cap for Increased Aeration | SterileAseptic & Fast Sampling in the Shakerpn931110-SP|50/caseclick for more details
- Optimum Growth® 250mL Flask, w/Sampling PortsterilePTFE 0.2µm Vent Cap for Increased Aeration | SterileAseptic & Fast Sampling in the Shakerpn931111-SP|50/caseclick for more details
- Optimum Growth® 500mL Flask, w/Sampling PortsterilePTFE 0.2µm Vent Cap for Increased Aeration | SterileAseptic & Fast Sampling in the Shakerpn931112-SP|25/caseclick for more details
- Optimum Growth® 5L Flask w/Sampling PortsterilePTFE 0.2µm Vent Cap for Increased Aeration | SterileAseptic & Fast Sampling in the Shakerpn931116-PORT-E|4/caseclick for more details
Optimum Growth® Multiport Flask Part Numbers
- Multiported Optimum Growth® 125mL FlasksterilePTFE 0.2µm Vent Cap for Increased Aeration | SterileMultiported Transfer/Feed & Sampling Abilitypn931110-DP|30/caseclick for more details
- Multiported Optimum Growth® 250mL FlasksterilePTFE 0.2µm Vent Cap for Increased Aeration | SterileMultiported Transfer/Feed & Sampling Abilitypn931111-DP|40/caseclick for more details
- Multiported Optimum Growth® 500mL FlasksterilePTFE 0.2µm Vent Cap for Increased Aeration | SterileMultiported Transfer/Feed & Sampling Abilitypn931112-DP|15/caseclick for more details
- Multiported Optimum Growth® 1.6L FlasksterilePTFE 0.2µm Vent Cap for Increased Aeration | SterileBidirectional Transfer/Feed & Sampling Abilitypn931113-PORT-TRT|12/caseclick for more details
- Multiported Optimum Growth® 5L FlasksterilePTFE 0.2µm Vent Cap for Increased Aeration | SterileBidirectional Transfer/Feed & Sampling Abilitypn931116-PORT-TRT-F|4/caseclick for more details
Optimum Growth® Flask Carrier Part Numbers
- 125mL 8 Position Carriernon-sterileUse with Optimum Growth® 125mL Flask (931110)Easily transport 8 125mL flasks at a timepn1212900|1/caseclick for more details
- 250mL 8 Position Carriernon-sterileUse with Optimum Growth® 250mL Flask (931111)Easily transport 8 250mL flasks at a timepn1212905|1/caseclick for more details
Optimum Growth® Vent Cap Part Numbers
- Optimum Growth® 125mL Vent CapsterilePTFE 0.2µm for Increased Aeration | SterileFor Optimum Growth® 125mL Flaskspn899110|50/caseclick for more details
- Optimum Growth® 250mL Vent CapsterilePTFE 0.2µm for Increased Aeration | SterileFor Optimum Growth® 250mL Flaskspn899111|50/caseclick for more details
- Optimum Growth® 500mL Vent CapsterilePTFE 0.2µm for Increased Aeration | SterileFor Optimum Growth® 500mL Flaskspn899112|25/caseclick for more details
- Optimum Growth® 1.6, 2.8 & 5L Vent CapsterilePTFE 0.2µm for Increased Aeration | SterileFor Optimum Growth® 1.6, 2.8 & 5L Flaskspn899116|24/caseclick for more details
Optimum Growth® Solid Cap Part Numbers
- Optimum Growth® 1.6, 2.8 & 5L Solid CapsterileEvaporation Proof Storage Cap | SterileFor Optimum Growth® 1.6, 2.8 & 5L Flaskspn899600-B|24/caseclick for more details
Optimum Growth® Exhaust Cap Part Numbers
- Bioreactor Exhaust Capsterile2' C-Flex® (I.D. 1/4" x O.D. 3/8") Tubing | SterileUse with Optimum Growth® 1.6L Flask & bioreactorpn931713-8|8/caseclick for more details
Transfer Cap Ring & Stand Part Numbers
- Stand with Ring for Inverting Optimum Growth® 1.6 & 2.8L Flasksnon-sterileUse with 1.6 & 2.8L Inversion Transfer CapsStand Height 22"pn931609|1/caseclick for more details
- Stand with Ring for Inverting Optimum Growth® 5L Flasknon-sterileUse with 5L Inversion Transfer CapsStand Height 22"pn931606|1/caseclick for more details
Transfer Cap Ring Only Part Numbers
- Ring Only for Inverting Optimum Growth® 1.6 & 2.8L Flasksnon-sterileUse with 1.6 & 2.8L Inversion Transfer CapsRequires 22" Standpn931700|1/caseclick for more details
- Ring Only for Inverting Optimum Growth® 5L Flasknon-sterileUse with 5L Inversion Transfer CapsRequires 22" Standpn931607|1/caseclick for more details
