Solid Liquid: Extraction Hot

Hot extraction is not universally optimal. Major challenges include:

Similar to decoction, but the solvent is heated first and then poured over the solid (like standard tea), utilizing the initial high heat to start the extraction. The "Too Hot" Risk solid liquid extraction hot

Benefits:

For batch hot extraction, the (modified Fick's law) is often applied: [ \fracC_tC_\infty = 1 - \sum_n=1^\infty \frac6\pi^2 n^2 \exp\left( -\fracD_eff \pi^2 n^2 tr_p^2 \right) ] where ( D_eff ) is the effective diffusion coefficient (temperature-dependent via Arrhenius), and ( r_p ) is the particle radius. Hot extraction is not universally optimal