Accurate　and　rapid　identification　of　expired　and　spoiled　food　is　crucial　for　food　conservation,　reducing　resource　wastage,　and　preventing　food　poisoning.　This　paper　presents　a　portable　electrochemical　sensing　platform　supported　by　a　miniature　electrochemical　workstation　and　an　intelligent　pH　recognition　system,　enabling　detection　of　L-lactic　acid　(L-LA)　in　food　products　without　enzyme　involvement.　The　system　was　based　on　a　Cu2O@CuO　multifaceted　extended　spatial　hexapod　structure.　The　synthesized　Cu2O@CuO　was　characterized　by　a　well-defined　multifaceted　structure.　Significant　enzyme-free　catalysis　was　exhibited,　and　pH　responses　dominated　by　anthocyanins　were　identified　through　an　intelligent　image　acquisition　system.　Additionally,　we　developed　an　electrochemical　detection　device　for　pH　assistance　during　target　testing,　addressing　the　limitations　of　current　electrochemical　sensors＇　complex　signal　acquisition　components　using　3D-printed　fabrication　techniques　and　smartphones.　The　proposed　multifunctional　electrochemical　workbench　based　on　Cu2O@CuO　was　found　to　offer　a　preferable　linear　detection　range　of　0.1–1000　μM　for　L-LA,　with　a　low　detection　limit　of　0.027　μM.　The　visualization　of　pH　determination　was　introduced　as　a　novel　approach　for　developing　advanced　electrochemical　workbenches.　In　conclusion,　pH-assisted　portable　electrochemical　detection　systems　hold　great　potential　for　immediate　food　safety　identification,　particularly　in　resource-limited　areas,　facilitating　prompt　diagnosis　and　ensuring　food　safety.　©　2024　Elsevier　Ltd