Fast cooking needs a quality window, not just higher pressure

A study published on 31 October compares three cooking routes for pork: conventional cooking at 100°C, sous-vide at 60°C, and micro-pressure cooking at 120°C. The team examined colour, texture, volatile compounds, water distribution, microstructure and protein structure in parallel. The paper therefore treats cooking not simply as a matter of time and temperature, but as a process that simultaneously changes juiciness, bite and aroma.

Across all three methods, longer cooking increased cooking loss, lightness and selected indicators of protein denaturation. At the same time, redness, part of the water detectable by resonance analysis, and proportions of esters and ordered protein structures declined. Several sensory-relevant measures—including shear force, hardness, alcohols, aldehydes and ketones—did not move in a straight line: they first increased and then decreased again.

Sous-vide delivered higher water-holding capacity, better retention of red colour and higher levels of alcohols and esters. Micro-pressure cooking yielded softer meat and greater water mobility, but also more pronounced microstructural damage and protein unfolding. According to the authors, it achieved textures and aroma profiles comparable with the other methods in less time.