Optimum Growth® Flasks

Thomson’s patented Optimum Growth® Flasks are engineered for mammalian and insect cell culture, supporting applications from research to production. Available in a wide variety of sizes, these flasks support 40 to 50% fill capacity (vs. 33% in traditional shake flasks) and maintain consistent performance across scales, making them a leading choice for modern bioprocessing workflows.

• Higher culture volume per flask helps grow more cells in the same shaker space, increasing throughput

• Same footprint as standard Fernbach flasks, but with greater media capacity and less foaming
• Unique low shear baffle design increases aeration while preserving cell viability
• 0.2 μm PTFE vented caps maintain sterility and efficient gas exchange
• Transfer cap options connect directly to cell bags or bioreactors (quick-connect, luer lock, or tube fusion)
• Scalable across all sizes; supporting consistent shake speeds and growth conditions from 125 ml to 7 L
• Easier to handle than bioreactor bags or bioprocess containers; no rocker bioreactor, pump, or complex tubing setup required
• Individually packaged, double-bagged, and sterilized for cleanroom-ready use
• Made in the USA with most products available for same-day shipping

The Optimum Growth® System also includes transfer caps and the Rapid Clear® Cap for clarification, offering a modular and cGMP-compliant platform for high-yield, scalable bioprocessing.